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a-8.5/2.1=-8.523
We simplify the equation to the form, which is simple to understand
a-8.5/2.1=-8.523
We move all terms containing a to the left and all other terms to the right.
+1a=-8.523+4.047619047619
We simplify left and right side of the equation.
+1a=-4.475380952381
We divide both sides of the equation by 1 to get a.
a=-4.475380952381
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