3x-13=x-20

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Solution for 3x-13=x-20 equation: 



3x-13=x-20

We move all terms to the left:

3x-13-(x-20)=0

We get rid of parentheses

3x-x+20-13=0

We add all the numbers together, and all the variables

2x+7=0

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

2x=-7

x=-7/2

x=-3+1/2

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