40-2x=-55-7x

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Solution for 40-2x=-55-7x equation: 



40-2x=-55-7x

We move all terms to the left:

40-2x-(-55-7x)=0

We add all the numbers together, and all the variables

-2x-(-7x-55)+40=0

We get rid of parentheses

-2x+7x+55+40=0

We add all the numbers together, and all the variables

5x+95=0

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

5x=-95

x=-95/5

x=-19

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