7x+-8x+4x=30

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Solution for 7x+-8x+4x=30 equation: 



7x+-8x+4x=30

We move all terms to the left:

7x+-8x+4x-(30)=0

determiningTheFunctionDomain
7x-8x+4x-30+=0

We add all the numbers together, and all the variables

3x=0

x=0/3

x=0

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