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3.50-x=31.50
We move all terms to the left:
3.50-x-(31.50)=0
We add all the numbers together, and all the variables
-x+3.50-(31.5)=0
We add all the numbers together, and all the variables
-1x-28=0
We move all terms containing x to the left, all other terms to the right
-x=28
x=28/-1
x=-28
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