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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

21x-(7x-21)+49=0

We get rid of parentheses

21x-7x+21+49=0

We add all the numbers together, and all the variables

14x+70=0

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

14x=-70

x=-70/14

x=-5

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