2x+5x=390

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Solution for 2x+5x=390 equation: 



2x+5x=390

We move all terms to the left:

2x+5x-(390)=0

We add all the numbers together, and all the variables

7x-390=0

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

7x=390

x=390/7

x=55+5/7

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