(X+15+x)=(4x-20)

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Solution for (X+15+x)=(4x-20) equation: 



(X+15+X)=(4X-20)

We move all terms to the left:

(X+15+X)-((4X-20))=0

We add all the numbers together, and all the variables

(2X+15)-((4X-20))=0

We get rid of parentheses

2X-((4X-20))+15=0



We calculate terms in parentheses: -((4X-20)), so:

(4X-20)

We get rid of parentheses

4X-20

Back to the equation:

-(4X-20)



We get rid of parentheses

2X-4X+20+15=0

We add all the numbers together, and all the variables

-2X+35=0

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

-2X=-35

X=-35/-2

X=17+1/2

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