7x-2x+15=40

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Solution for 7x-2x+15=40 equation: 



7x-2x+15=40

We move all terms to the left:

7x-2x+15-(40)=0

We add all the numbers together, and all the variables

5x-25=0

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

5x=25

x=25/5

x=5

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