20=4x+5+7

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Solution for 20=4x+5+7 equation: 



20=4x+5+7

We move all terms to the left:

20-(4x+5+7)=0

We add all the numbers together, and all the variables

-(4x+12)+20=0

We get rid of parentheses

-4x-12+20=0

We add all the numbers together, and all the variables

-4x+8=0

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

-4x=-8

x=-8/-4

x=+2

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