3(10+5x)=-90

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Solution for 3(10+5x)=-90 equation: 



3(10+5x)=-90

We move all terms to the left:

3(10+5x)-(-90)=0

We add all the numbers together, and all the variables

3(5x+10)-(-90)=0

We add all the numbers together, and all the variables

3(5x+10)+90=0

We multiply parentheses

15x+30+90=0

We add all the numbers together, and all the variables

15x+120=0

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

15x=-120

x=-120/15

x=-8

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