20-5x=8x+7x

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Solution for 20-5x=8x+7x equation: 



20-5x=8x+7x

We move all terms to the left:

20-5x-(8x+7x)=0

We add all the numbers together, and all the variables

-5x-(+15x)+20=0

We get rid of parentheses

-5x-15x+20=0

We add all the numbers together, and all the variables

-20x+20=0

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

-20x=-20

x=-20/-20

x=1

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