-30+3x+15=x+2(x-7.5)

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Solution for -30+3x+15=x+2(x-7.5) equation: 



-30+3x+15=x+2(x-7.5)

We move all terms to the left:

-30+3x+15-(x+2(x-7.5))=0

We add all the numbers together, and all the variables

3x-(x+2(x-7.5))-15=0



We calculate terms in parentheses: -(x+2(x-7.5)), so:

x+2(x-7.5)

We multiply parentheses

x+2x-15

We add all the numbers together, and all the variables

3x-15

Back to the equation:

-(3x-15)



We get rid of parentheses

3x-3x+15-15=0

We add all the numbers together, and all the variables

=0

x=0/1

x=0

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