7x+15=3(4x+10)

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Solution for 7x+15=3(4x+10) equation: 



7x+15=3(4x+10)

We move all terms to the left:

7x+15-(3(4x+10))=0



We calculate terms in parentheses: -(3(4x+10)), so:

3(4x+10)

We multiply parentheses

12x+30

Back to the equation:

-(12x+30)



We get rid of parentheses

7x-12x-30+15=0

We add all the numbers together, and all the variables

-5x-15=0

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

-5x=15

x=15/-5

x=-3

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