3(x+7)=9x-18

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Solution for 3(x+7)=9x-18 equation: 



3(x+7)=9x-18

We move all terms to the left:

3(x+7)-(9x-18)=0

We multiply parentheses

3x-(9x-18)+21=0

We get rid of parentheses

3x-9x+18+21=0

We add all the numbers together, and all the variables

-6x+39=0

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

-6x=-39

x=-39/-6

x=6+1/2

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