4x=(x+15)(3)

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Solution for 4x=(x+15)(3) equation: 



4x=(x+15)(3)

We move all terms to the left:

4x-((x+15)(3))=0



We calculate terms in parentheses: -((x+15)3), so:

(x+15)3

We multiply parentheses

3x+45

Back to the equation:

-(3x+45)



We get rid of parentheses

4x-3x-45=0

We add all the numbers together, and all the variables

x-45=0

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

x=45

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