7x+21+x=-19

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Solution for 7x+21+x=-19 equation: 



7x+21+x=-19

We move all terms to the left:

7x+21+x-(-19)=0

We add all the numbers together, and all the variables

8x+40=0

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

8x=-40

x=-40/8

x=-5

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