3+x+7=-30-7x

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Solution for 3+x+7=-30-7x equation: 



3+x+7=-30-7x

We move all terms to the left:

3+x+7-(-30-7x)=0

We add all the numbers together, and all the variables

x-(-7x-30)+3+7=0

We add all the numbers together, and all the variables

x-(-7x-30)+10=0

We get rid of parentheses

x+7x+30+10=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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