20+4x+9=8x-7

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



20+4x+9=8x-7

We move all terms to the left:

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

We add all the numbers together, and all the variables

4x-(8x-7)+29=0

We get rid of parentheses

4x-8x+7+29=0

We add all the numbers together, and all the variables

-4x+36=0

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

-4x=-36

x=-36/-4

x=+9

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