3(5x+7x)=30+6x

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Solution for 3(5x+7x)=30+6x equation: 



3(5x+7x)=30+6x

We move all terms to the left:

3(5x+7x)-(30+6x)=0

We add all the numbers together, and all the variables

3(+12x)-(6x+30)=0

We multiply parentheses

36x-(6x+30)=0

We get rid of parentheses

36x-6x-30=0

We add all the numbers together, and all the variables

30x-30=0

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

30x=30

x=30/30

x=1

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