3x-120=9,920-2x

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Solution for 3x-120=9,920-2x equation: 



3x-120=9.920-2x

We move all terms to the left:

3x-120-(9.920-2x)=0

We add all the numbers together, and all the variables

3x-(-2x+9.92)-120=0

We get rid of parentheses

3x+2x-9.92-120=0

We add all the numbers together, and all the variables

5x-129.92=0

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

5x=129.92

x=129.92/5

x=25+2.5625/2.60416666667

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