-3x-4x=55-7

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Solution for -3x-4x=55-7 equation: 



-3x-4x=55-7

We move all terms to the left:

-3x-4x-(55-7)=0

We add all the numbers together, and all the variables

-3x-4x-48=0

We add all the numbers together, and all the variables

-7x-48=0

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

-7x=48

x=48/-7

x=-6+6/7

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