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a-812=2a+5
We simplify the equation to the form, which is simple to understand
a-812=2a+5
We move all terms containing a to the left and all other terms to the right.
+1a-2a=+5+812
We simplify left and right side of the equation.
-1a=+817
We divide both sides of the equation by -1 to get a.
a=-817
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