15+7x-2x=20

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Solution for 15+7x-2x=20 equation: 



15+7x-2x=20

We move all terms to the left:

15+7x-2x-(20)=0

We add all the numbers together, and all the variables

5x-5=0

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

5x=5

x=5/5

x=1

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