-7x+x+2x=-18

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Solution for -7x+x+2x=-18 equation: 



-7x+x+2x=-18

We move all terms to the left:

-7x+x+2x-(-18)=0

We add all the numbers together, and all the variables

-4x+18=0

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

-4x=-18

x=-18/-4

x=4+1/2

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