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8.1a+23=5.1a-3.1
We simplify the equation to the form, which is simple to understand
8.1a+23=5.1a-3.1
We move all terms containing a to the left and all other terms to the right.
+8.1a-5.1a=-3.1-23
We simplify left and right side of the equation.
+3a=-26.1
We divide both sides of the equation by 3 to get a.
a=-8.7
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