7+7x=-7-21

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



7+7x=-7-21

We move all terms to the left:

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

We add all the numbers together, and all the variables

7x+7-(-28)=0

We add all the numbers together, and all the variables

7x+35=0

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

7x=-35

x=-35/7

x=-5

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