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8=a+5.5
We simplify the equation to the form, which is simple to understand
8=a+5.5
We move all terms containing a to the left and all other terms to the right.
-1a=+5.5-8
We simplify left and right side of the equation.
-1a=-2.5
We divide both sides of the equation by -01 to get a.
a=2.5
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