3x-7=2x-20

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Solution for 3x-7=2x-20 equation: 



3x-7=2x-20

We move all terms to the left:

3x-7-(2x-20)=0

We get rid of parentheses

3x-2x+20-7=0

We add all the numbers together, and all the variables

x+13=0

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

x=-13

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