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

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



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

We move all terms to the left:

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

We multiply parentheses

3x-(-(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

3x+3x+15+15=0

We add all the numbers together, and all the variables

6x+30=0

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

6x=-30

x=-30/6

x=-5

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