-3+15-7x=30

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Solution for -3+15-7x=30 equation: 



-3+15-7x=30

We move all terms to the left:

-3+15-7x-(30)=0

We add all the numbers together, and all the variables

-7x-18=0

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

-7x=18

x=18/-7

x=-2+4/7

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