3(x-7)+9=3x-12

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Solution for 3(x-7)+9=3x-12 equation: 



3(x-7)+9=3x-12

We move all terms to the left:

3(x-7)+9-(3x-12)=0

We multiply parentheses

3x-(3x-12)-21+9=0

We get rid of parentheses

3x-3x+12-21+9=0

We add all the numbers together, and all the variables

=0

x=0/1

x=0

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