3(,x-7)=-21+3x

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Solution for 3(,x-7)=-21+3x equation: 



3(.x-7)=-21+3x

We move all terms to the left:

3(.x-7)-(-21+3x)=0

We add all the numbers together, and all the variables

-(3x-21)+3(-7)=0

We add all the numbers together, and all the variables

-(3x-21)-21=0

We get rid of parentheses

-3x+21-21=0

We add all the numbers together, and all the variables

-3x=0

x=0/-3

x=0

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