3(7+2x)=30+7x-7

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Solution for 3(7+2x)=30+7x-7 equation: 



3(7+2x)=30+7x-7

We move all terms to the left:

3(7+2x)-(30+7x-7)=0

We add all the numbers together, and all the variables

3(2x+7)-(7x+23)=0

We multiply parentheses

6x-(7x+23)+21=0

We get rid of parentheses

6x-7x-23+21=0

We add all the numbers together, and all the variables

-1x-2=0

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

-x=2

x=2/-1

x=-2

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