-1+7x-4x=-28

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Solution for -1+7x-4x=-28 equation: 



-1+7x-4x=-28

We move all terms to the left:

-1+7x-4x-(-28)=0

We add all the numbers together, and all the variables

3x+27=0

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

3x=-27

x=-27/3

x=-9

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