3x-15+7x=30

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



3x-15+7x=30

We move all terms to the left:

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

We add all the numbers together, and all the variables

10x-45=0

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

10x=45

x=45/10

x=4+1/2

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