x-15=3(2x+5)

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Solution for x-15=3(2x+5) equation: 



x-15=3(2x+5)

We move all terms to the left:

x-15-(3(2x+5))=0



We calculate terms in parentheses: -(3(2x+5)), so:

3(2x+5)

We multiply parentheses

6x+15

Back to the equation:

-(6x+15)



We get rid of parentheses

x-6x-15-15=0

We add all the numbers together, and all the variables

-5x-30=0

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

-5x=30

x=30/-5

x=-6

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