7(x-12)=-21=9

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Solution for 7(x-12)=-21=9 equation:



7(x-12)=-21=9
We move all terms to the left:
7(x-12)-(-21)=0
We add all the numbers together, and all the variables
7(x-12)+21=0
We multiply parentheses
7x-84+21=0
We add all the numbers together, and all the variables
7x-63=0
We move all terms containing x to the left, all other terms to the right
7x=63
x=63/7
x=9

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