3*5%+2%(x-1)=43%

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3*5%+2%(x-1)=43%

3*5%+2%(x-1)=43%
3*5%+2%(x-1)=43%

3*5%+2%(x-1)=43%
3*5%+2%(x-1)=43%
两边乘以100
3*5+2(x-1)=43
15+2x-2=43
2x=43+2-15
2x=30
x=30÷2
x=15

15

3*5%+2%(x-1)=43%
3*5+2*（X-1）=43
15+2x-2=43
2x=30
x=15

两边同时乘以100，得15+2x-2=43 x=15

3*5％+2％（x-1）=43％
方程两边都乘以100得 3*5+2（x-1）=43
15+2x-2=43
2x=43+2-15
2x=30
x=15
经检验：x=15是原方程的解

3/20+2%x-2%=43%
2%X=43%-3/20-2%
2%X=26%
X=26%/2%
X=13

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