7x+5x-7=-31

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Solution for 7x+5x-7=-31 equation: 



7x+5x-7=-31

We move all terms to the left:

7x+5x-7-(-31)=0

We add all the numbers together, and all the variables

12x+24=0

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

12x=-24

x=-24/12

x=-2

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