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90=38.56+.5x
We move all terms to the left:
90-(38.56+.5x)=0
We add all the numbers together, and all the variables
-(.5x+38.56)+90=0
We get rid of parentheses
-.5x-38.56+90=0
We add all the numbers together, and all the variables
-0.5x+51.44=0
We move all terms containing x to the left, all other terms to the right
-0.5x=-51.44
x=-51.44/-0.5
x=102+0.44/0.5
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