3x+45=-2x+80

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Solution for 3x+45=-2x+80 equation: 



3x+45=-2x+80

We move all terms to the left:

3x+45-(-2x+80)=0

We get rid of parentheses

3x+2x-80+45=0

We add all the numbers together, and all the variables

5x-35=0

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

5x=35

x=35/5

x=7

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