7x+12=3(5x-12x)

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Solution for 7x+12=3(5x-12x) equation: 



7x+12=3(5x-12x)

We move all terms to the left:

7x+12-(3(5x-12x))=0

We add all the numbers together, and all the variables

7x-(3(-7x))+12=0



We calculate terms in parentheses: -(3(-7x)), so:

3(-7x)

We multiply parentheses

-21x

Back to the equation:

-(-21x)



We get rid of parentheses

7x+21x+12=0

We add all the numbers together, and all the variables

28x+12=0

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

28x=-12

x=-12/28

x=-3/7

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