(1) (x+960)×80%=x-832 (2) (2x-3)÷7=59-2x (3) 75%x+40%×(14-x)
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(1) (x+960)×80%=x-832 (2) (2x-3)÷7=59-2x (3) 75%x+40%×(14-x)=...
(1) (x+960)×80%=x-832
(2) (2x-3)÷7=59-2x
(3) 75%x+40%×(14-x)=50%×14
(4) 3/5x=(x+10)×3/5
(5) 1/2+1/6+1/12+1/20+1/30+1/42
(1) (x+960)×80%=x-832
(2) (2x-3)÷7=59-2x
(3) 75%x+40%×(14-x)=50%×14
(4) 3/5x=(x+10)×3/5
(5) 1/2+1/6+1/12+1/20+1/30+1/42
1. x-x*80%=960*80%+832
0.2x=768+832
0.2x=1600
x=32000
2. 2x-3=(59-2x)*7
2x+2x*7=59*7+3
16x=416
x=26
3. 75%x-40%x=50%×14-40%*14
35%x=10%*14
x=4
4.3/5x=3/5x+6 题抄错了
5.1/2+1/6=2/3 2/3+1/12=3/4 3/4+1/20=4/5
4/5+1/30=5/6 5/6+1/42=6/7
0.2x=768+832
0.2x=1600
x=32000
2. 2x-3=(59-2x)*7
2x+2x*7=59*7+3
16x=416
x=26
3. 75%x-40%x=50%×14-40%*14
35%x=10%*14
x=4
4.3/5x=3/5x+6 题抄错了
5.1/2+1/6=2/3 2/3+1/12=3/4 3/4+1/20=4/5
4/5+1/30=5/6 5/6+1/42=6/7
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