7x-25+2x=20

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Solution for 7x-25+2x=20 equation: 



7x-25+2x=20

We move all terms to the left:

7x-25+2x-(20)=0

We add all the numbers together, and all the variables

9x-45=0

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

9x=45

x=45/9

x=5

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