3(30+x)=15

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



3(30+x)=15

We move all terms to the left:

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

We add all the numbers together, and all the variables

3(x+30)-15=0

We multiply parentheses

3x+90-15=0

We add all the numbers together, and all the variables

3x+75=0

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

3x=-75

x=-75/3

x=-25

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