8x+40=-7x=55

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Solution for 8x+40=-7x=55 equation: 



8x+40=-7x=55

We move all terms to the left:

8x+40-(-7x)=0

We get rid of parentheses

8x+7x+40=0

We add all the numbers together, and all the variables

15x+40=0

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

15x=-40

x=-40/15

x=-2+2/3

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