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8/10=a/4
We simplify the equation to the form, which is simple to understand
8/10=a/4
We move all terms containing a to the left and all other terms to the right.
-0.25a=-0.8
We simplify left and right side of the equation.
-0.25a=-0.8
We divide both sides of the equation by -00.25 to get a.
a=3.2
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