20=4(x+8)-7x

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



20=4(x+8)-7x

We move all terms to the left:

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



We calculate terms in parentheses: -(4(x+8)-7x), so:

4(x+8)-7x

We add all the numbers together, and all the variables

-7x+4(x+8)

We multiply parentheses

-7x+4x+32

We add all the numbers together, and all the variables

-3x+32

Back to the equation:

-(-3x+32)



We get rid of parentheses

3x-32+20=0

We add all the numbers together, and all the variables

3x-12=0

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

3x=12

x=12/3

x=4

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