450-20x=310

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Solution for 450-20x=310 equation: 



450-20x=310

We move all terms to the left:

450-20x-(310)=0

We add all the numbers together, and all the variables

-20x+140=0

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

-20x=-140

x=-140/-20

x=+7

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