7x+1=-3x-9

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Solution for 7x+1=-3x-9 equation: 



7x+1=-3x-9

We move all terms to the left:

7x+1-(-3x-9)=0

We get rid of parentheses

7x+3x+9+1=0

We add all the numbers together, and all the variables

10x+10=0

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

10x=-10

x=-10/10

x=-1

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