(9x+15)=(-3x-15)

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Solution for (9x+15)=(-3x-15) equation: 



(9x+15)=(-3x-15)

We move all terms to the left:

(9x+15)-((-3x-15))=0

We get rid of parentheses

9x-((-3x-15))+15=0



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

(-3x-15)

We get rid of parentheses

-3x-15

Back to the equation:

-(-3x-15)



We get rid of parentheses

9x+3x+15+15=0

We add all the numbers together, and all the variables

12x+30=0

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

12x=-30

x=-30/12

x=-2+1/2

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