7x-2x=3x-20

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



7x-2x=3x-20

We move all terms to the left:

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

We add all the numbers together, and all the variables

5x-(3x-20)=0

We get rid of parentheses

5x-3x+20=0

We add all the numbers together, and all the variables

2x+20=0

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

2x=-20

x=-20/2

x=-10

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