7x-4+2x=-40

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Solution for 7x-4+2x=-40 equation: 



7x-4+2x=-40

We move all terms to the left:

7x-4+2x-(-40)=0

We add all the numbers together, and all the variables

9x+36=0

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

9x=-36

x=-36/9

x=-4

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