140+80+4x+3x=180

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Solution for 140+80+4x+3x=180 equation: 



140+80+4x+3x=180

We move all terms to the left:

140+80+4x+3x-(180)=0

We add all the numbers together, and all the variables

7x+40=0

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

7x=-40

x=-40/7

x=-5+5/7

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