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12-0.50x=2.50
We move all terms to the left:
12-0.50x-(2.50)=0
We add all the numbers together, and all the variables
-0.50x+12-(2.5)=0
We add all the numbers together, and all the variables
-0.5x+9.5=0
We move all terms containing x to the left, all other terms to the right
-0.5x=-9.5
x=-9.5/-0.5
x=+19
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