2x-4x+3x-5x+7x=-84

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Solution for 2x-4x+3x-5x+7x=-84 equation: 



2x-4x+3x-5x+7x=-84

We move all terms to the left:

2x-4x+3x-5x+7x-(-84)=0

We add all the numbers together, and all the variables

3x+84=0

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

3x=-84

x=-84/3

x=-28

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