1樓:匿名使用者
2x+5=15 6x+5=11 x-0.8x=6
19y+y=40 25-5x=15 79y+y=80
42x+28x=140 3x-1=8 9: 90y-90=90
80y-90=70
9x-40=5 x÷5+9=21
48-27+5x=31 10.5+x+21=56
(200-x)÷5=30 (x-140)÷70=4
4(x-5.6)=1.6 7(6.5+x)=87.5
3x+5x=48 14x-8x=12
6x5+2x=44
20x-50=50 28+6x=88
24-3x=3 10x(5+1)=60
4y+2=6 x+32=76
16+8x=40
2樓:我是極客的人
0.5+x)+x=9.8÷2 2(x+x+0.
5)=9.8 25000+x=6x 3200=450+5x+x x-0.8x=6 12x-8x=4.
8 7.5*2x=15 1.2x=81.
6 x+5.6=9.4 52-x =15 91÷x =1.
3 x+8.3=10.7 15x =3 3x-8=16 7(x-2)=2x+3 3x+9=2718(x-2)=270 12x=300-4x 7x+5.
3=7.4 3x÷5=4.8 30÷x+25=85 1.
4×8-2x=6 6x-12.8×3=0.06 410-3x=170 3(x+0.
5)=21 0.5x+8=43 6x-3x=18 1.5x+18=3x 5×3-x÷2=8 0.
273÷x=0.35 1.8x=0.
972 x÷0.756=90 9x-40=5 x÷5+9=21 48-27+5x=31 10.5+x+21=56 x+2x+18=78 (200-x)÷5=30 (x-140)÷70=4 0.
1(x+6)=3.3×0.4 4(x-5.
6)=1.6 7(6.5+x)=87.
5 (27.5-3.5)÷x=4 x+19.
8=25.8 5.6x=33.
6 9.8-x=3.8 75.
6÷x=12.6 5x+12.5=32.
3 5(x+8)=102 x+3x+10=70 3(x+3)=50-x+3 5x+15=60 3.5-5x=2 0.3×7+4x=12.
5 x÷1.5-1.25=0.
75 4x-1.3×6=2.6 20-9x=1.
2×6.25 6x+12.8=15.
8 150×2+3x=690 2x-20=4 3x+6=18 2(2.8+x)=10.4 (x-3)÷2=7.
5 13.2x+9x=33.3 3x=x+100 x+4.
8=7.2 6x+18=48 3(x+2.1)=10.
5 12x-9x=8.7 13(x+5)=169 2x-97=34.2 3.
4x-48=26.8 42x+25x=134 1.5(x+1.
6)=3.6 2(x-3)=5.8 65x+7=42 9x+4×2.
5=91 4.2 x+2.5x=134 .
5+x+21=56
x+2x+18=78
(200-x)÷5=30
3樓:甜心小姐
x+3.5 =8 5x =20.5 x-4.8 =23.56 x÷3.6 =8.2
7.4+x =30 x-308 =692 2.5x =75 x÷6.4 =20
3.6x =7.2 x+38.9 =80 x-2.4 =21 x÷34 =2.7
126÷x=42 13+x=28.5 2.4x=26.4 10-x=8.5
3.5x = 140 2x +5 = 40 13x- 59.71= 5.29 54-x=24
4.2×3—3x = 5.11 5x+6x = 168 5x+1.5 = 4.5 7x-7=49
x+3.86=5.46 17.89-x=12.89 40.8+x=57.3 3x+2×6=30
2x+0.82﹦8.2 3+0.5x﹦7 7.8÷x﹦2.6 80x÷4﹦12
5+0.9x﹦275 2x+0.4x=48 6+6x=18 35x+13x=9.6
0.52×5+4x=16 0.7(x+0.9)=42 1.3x+2.4×3=12.4 24x-8x=28.8
78+4x=84 4.5×2+5x=180 8x-7.2×5=12 13+a=28.5
(7-1.4)x=2.8 9x-5.2×6=4.8 7x-0.8x=9.3 x÷0.84=2.3
13+x=98.5 3x-24=9 x-0.84x=0.8 x÷0.26=0.52
0.25x+3.75=12 x+1.8×2=7.5 x÷7.2+3.8=15 0.6x+x=24
48+5x=63 17.6+2.4x=50 5x-1.5x=28 2x÷15=4
(6-2.5)x=14.7 (x-4.5)÷7=1.6 6(x+8.9)=72
(x+8.6)÷2.4=6.4 x-0.3x-0.5x=20 4(x-7.8)=31.2
1.5(48-2x)=48 (x+32)÷24=2.5 4x-2×6=4
0.7x=4.2 x-9=11 3x=2.1 x÷8=15
4.8÷1.2+0.5x=8.5 2.5x-0.6×1.5=6.6 16÷x=8
4x+2=7×8 12.5x-0.9x=52.2 2x+2.8×2=10.5×4
簡便運算(巧算)。
2.5×(2.8×0.04) 3.59×101 (8×2.57)×1.25
36×0.25+64×0.25 0.125×32 0.04×29+0.04
89.7÷0.125÷0.8 10.27×2.4-10.27+10.27×8.6
3.57+1.9+6.43+6.1 98.2×101-98.2 0.125×32×0.5
99×2.45 3.75×99+3.75 4.78-3.62-0.38+5.22
1.69×3.3+1.69×5.7+1.69 36×10.1 4.5×9.8
(71.2-71.2×0.9)÷0.8 7.74×(2.8-1.3)+1.5×2.26
12.7×9.9+1.27 3.65×43+36.5×5.7 76÷0.25
脫式計算。
39.68÷3.2×0.45 1.5÷0.25×36.3 30.1-17.68÷4.7
18.5+4.1×7.2-9.5 1-0.024÷0.08×3 10.48+22.56÷4.7×5.4
18-(1.4-1.25×0.8) 3.8×3.8÷3.8×3.8 0.8×〔13-(3.12+5.28)〕
4.32×15÷12+5.1÷0.85 20.148-0.8×(10.4+0.64)÷0.92
13-〔3.8+(24-25×0.6)〕 39.8-0.5×0.5-0.75 6.7+3.3÷4.4+5.6
1.44÷1.2÷1.2 5.97-(1.8+5.97) 8.24+(2.68-1.54)÷0.82
4樓:匿名使用者
解:設這個數為x
3.5+4.5=x-2.2
8+2.2=x
10.2=x
你把這個反過來就可以了 這題我自己寫的希望有分哦 我也是五年級
5樓:手機使用者
3:x-0.8x=6
6樓:匿名使用者
設這數為x
x-(3.5+4.5)=2.2
x-8=2.2
x=2.2+8
x=10.2
7樓:秋的9月
x-2.2=3.5+4.5
x=8+2.2
x=10.2
8樓:匿名使用者
.5+x+21=56
x+2x+18=78
(200-x)÷5=30
(x-140)÷70=4
0.1(x+6)=3.3×0.4
4(x-5.6)=1.6
9樓:
1:2x+5=15 2:6x+5=11 3:x-0.8x=6
4:19y+y=40 5:25-5x=15 6:79y+y=80
7:42x+28x=140 8:3x-1=8 9: 90y-90=90
10: 80y-90=70 11: 78y+2y=160 12: 88-x=80
13: 9-4x=1 14: 20x=40 15: 65y-30=100
16: 51y-y=100 17: 6x-3x=18 18: 1.5x+18=3x
19: 5×3-x÷2=8 20: 0.273÷x=0.35 21: 1.8x=0.972
22: x÷0.756=90 23: 9x-40=5 24: x÷5+9=21
25: 48-27+5x=31 26: 10.5+x+21=56 27: x+2x+18=78
28: (200-x)÷5=30 29: (x-140)÷70=4 30: 0.1(x+6)=3.3×0.4
31: 4(x-5.6)=1.6 32: 7(6.5+x)=87.5
34: 3x+5x=48 35: 14x-8x=12
36: 6x5+2x=44
37: 20x-50=50 38: 28+6x=88 39: 32-22x=10
40: 24-3x=3 41: 10x(5+1)=60 42: 99x=100-x
43: x+3=18 44: x-6=12 45: 56-2x=20
46: 4y+2=6 47: x+32=76 48: 3x+6=18
49: 16+8x=40 50: 2x-8=8 51: 4x-3×9=29
52: 8x-3x=105
53: x-6×5=42
54: x+5=7
55: 2x+3=10
56: 12x-9x=9
57: 6x+18=48
58: 56x-50x=30
59: 5x=15
60: 78-5x=28
61: 32y-29=3
62: 5x+5=15
63: 89x-9=80
64: 100-20x=20
65: 55x-25x=60
66: 76y-75=1
67: 23y-23=23
68: 4x-20=0
69: 80y+20=100
70: 17:85y+1=-86
71: 18:45x-50=40
72: 5x=15
73: 78-5x=28
74: 32y-29=3
75: 5x+5=15
76: 89x-9=80
77: 100-20x=20
78: 55x-25x=60
79: 76y-75=1
80: 23y-23=23
81: 4x-20=0
82: 80y+20=100
83: 53x-90=16
84: 2x+9x=11
85: 12y-12=24
86: 80+5x=100
87: 10x(5+1)=60
88: 99x=100-x
89: x+3=18
90: x-6=12
91: 56-2x=20
92: 4y+2=6
93: x+32=76
94: 3x+6=18
95: 16+8x=40
96: 2x-8=8
97: 4x-3×9=29
98: 8x-3x=105
99: x-6×5=42
100: x+5=7
101: 2x+3=10
102: 12x-9x=9
103: 6x+18=48
104: 56x-50x=30
105: 5x=15
106: 78-5x=28
107: 32y-29=3
108: 5x+5=15
109: 89x-9=80
110: 100-20x=20
111: 55x-25x=60
112: 76y-75=1
113: 23y-23=23
114: 4x-20=0
115: 80y+20=100
116: 53x-90=16
117: 2x+9x=11
118: 12y-12=24
119: 80+5x=100
120: 7x-8=6
121: 65x+35=100
122: 19y+y=40
123: 25-5x=15
124: 79y+y=80
125: 42x+28x=140
126: 3x-1=8
127: 90y-90=90
128: 80y-90=70
129: 78y+2y=160
130: 88-x=80
131: 9-4x=1
132: 20x=40
133: 65y-30=100
134: 51y-y=100
135: 85y+1=-86
136: 45x-50=40
137: 6x-3x=18
138: 1.5x+18=3x
139: 5×3-x÷2=8
140: 0.273÷x=0.35
141: 1.8x=0.972
142: x÷0.756=90
143: 9x-40=5
144: x÷5+9=21
145: 48-27+5x=31
146: 10.5+x+21=56
147: x+2x+18=78
148: (200-x)÷5=30
149: (x-140)÷70=4
150: 0.1(x+6)=3.3×0.4
151: 4(x-5.6)=1.6
152: 7(6.5+x)=87.5
153: (27.5-3.5)÷x=4
154: 3x+5x=48
155: 14x-8x=12
156: 6×5+2x=44
157: 20x-50=50
158: 28+6x=88
159: 32-22x=10
160: 24-3x=3
161:(5+1)x=60
162: 99x=100-x
163: x+3=18
164: x-6=12
165: 56-2x=20
166: 4y+2=6
167: x+32=76
168: 3x+6=18
169: 16+8x=40
170: 2x-8=8
171:4x-3×9=29
172:8x-3x=105
173:x-6×5=42
174:x+5=7
175:2x+3=10
176:12x-9x=9
177:6x+18=48
178:56x-50x=30
179:5x=15
180:78-5x=28
181:32y-29=3
182:5x+5=15
183:89x-9=80
184:100-20x=20
185:55x-25x=60
186:76y-75=1
187:23y-23=23
188:4x-20=0
189:80y+20=100
190:53x-90=16
191:2x+9x=11
192:12y-12=24
193:80+5x=100
194:4x-3×9=29
195:8x-3x=105
196:x-6×5=42
197:x+5=7
198:2x+3=10
199:12x-9x=9
200:6x+18=48
201:56x-50x=30
202:5x=15
203:78-5x=28
204:32y-29=3
205:5x+5=15
206:89x-9=80
207:100-20x=20
208:55x-25x=60
209:76y-75=1
210:23y-23=23
211:4x-20=0
212:80y+20=10
可能有小數,請包涵一下。
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