12(x+15)=-3(x-30)

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Solution for 12(x+15)=-3(x-30) equation: 



12(x+15)=-3(x-30)

We move all terms to the left:

12(x+15)-(-3(x-30))=0

We multiply parentheses

12x-(-3(x-30))+180=0



We calculate terms in parentheses: -(-3(x-30)), so:

-3(x-30)

We multiply parentheses

-3x+90

Back to the equation:

-(-3x+90)



We get rid of parentheses

12x+3x-90+180=0

We add all the numbers together, and all the variables

15x+90=0

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

15x=-90

x=-90/15

x=-6

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