9x-20=7x+10

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Solution for 9x-20=7x+10 equation: 



9x-20=7x+10

We move all terms to the left:

9x-20-(7x+10)=0

We get rid of parentheses

9x-7x-10-20=0

We add all the numbers together, and all the variables

2x-30=0

We move all terms containing x to the left, all other terms to the right

2x=30

x=30/2

x=15

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