7x+7=-123-6x

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Solution for 7x+7=-123-6x equation: 



7x+7=-123-6x

We move all terms to the left:

7x+7-(-123-6x)=0

We add all the numbers together, and all the variables

7x-(-6x-123)+7=0

We get rid of parentheses

7x+6x+123+7=0

We add all the numbers together, and all the variables

13x+130=0

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

13x=-130

x=-130/13

x=-10

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