(4x-12)=(2x+20)=90

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Solution for (4x-12)=(2x+20)=90 equation: 



(4x-12)=(2x+20)=90

We move all terms to the left:

(4x-12)-((2x+20))=0

We get rid of parentheses

4x-((2x+20))-12=0



We calculate terms in parentheses: -((2x+20)), so:

(2x+20)

We get rid of parentheses

2x+20

Back to the equation:

-(2x+20)



We get rid of parentheses

4x-2x-20-12=0

We add all the numbers together, and all the variables

2x-32=0

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

2x=32

x=32/2

x=16

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