3x+15-7x=55

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Solution for 3x+15-7x=55 equation: 



3x+15-7x=55

We move all terms to the left:

3x+15-7x-(55)=0

We add all the numbers together, and all the variables

-4x-40=0

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

-4x=40

x=40/-4

x=-10

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