x+15=4(x-15)

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



x+15=4(x-15)

We move all terms to the left:

x+15-(4(x-15))=0



We calculate terms in parentheses: -(4(x-15)), so:

4(x-15)

We multiply parentheses

4x-60

Back to the equation:

-(4x-60)



We get rid of parentheses

x-4x+60+15=0

We add all the numbers together, and all the variables

-3x+75=0

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

-3x=-75

x=-75/-3

x=+25

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