21+7x=-114-2x

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Solution for 21+7x=-114-2x equation: 



21+7x=-114-2x

We move all terms to the left:

21+7x-(-114-2x)=0

We add all the numbers together, and all the variables

7x-(-2x-114)+21=0

We get rid of parentheses

7x+2x+114+21=0

We add all the numbers together, and all the variables

9x+135=0

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

9x=-135

x=-135/9

x=-15

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