140-2x=180

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Solution for 140-2x=180 equation: 



140-2x=180

We move all terms to the left:

140-2x-(180)=0

We add all the numbers together, and all the variables

-2x-40=0

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

-2x=40

x=40/-2

x=-20

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