-8+9x=7x-4+20

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Solution for -8+9x=7x-4+20 equation: 



-8+9x=7x-4+20

We move all terms to the left:

-8+9x-(7x-4+20)=0

We add all the numbers together, and all the variables

9x-(7x+16)-8=0

We get rid of parentheses

9x-7x-16-8=0

We add all the numbers together, and all the variables

2x-24=0

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

2x=24

x=24/2

x=12

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