(30-2x)+x=31.5

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Solution for (30-2x)+x=31.5 equation: 



(30-2x)+x=31.5

We move all terms to the left:

(30-2x)+x-(31.5)=0

We add all the numbers together, and all the variables

(-2x+30)+x-(31.5)=0

We add all the numbers together, and all the variables

x+(-2x+30)-31.5=0

We get rid of parentheses

x-2x+30-31.5=0

We add all the numbers together, and all the variables

-1x-1.5=0

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

-x=1.5

x=1.5/-1

x=-1+0.5/1

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