3(X+7)=12x-15

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Solution for 3(X+7)=12x-15 equation: 



3(X+7)=12X-15

We move all terms to the left:

3(X+7)-(12X-15)=0

We multiply parentheses

3X-(12X-15)+21=0

We get rid of parentheses

3X-12X+15+21=0

We add all the numbers together, and all the variables

-9X+36=0

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

-9X=-36

X=-36/-9

X=+4

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