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-.3a-0.5(a+16)=0.8(a+15)
We simplify the equation to the form, which is simple to understand
-.3a-0.5(a+16)=0.8(a+15)
Reorder the terms in parentheses
-.3a+(-0.5a-8)=0.8*(a+15)
Remove unnecessary parentheses
-.3a-0.5a-8=0.8+*(+a+15+)
Reorder the terms in parentheses
-.3a-0.5a-8=+( + 0.8a+12)
Remove unnecessary parentheses
-.3a-0.5a-8=0.8a+12
We move all terms containing a to the left and all other terms to the right.
-0.3a-0.5a-0.8a=+12+8
We simplify left and right side of the equation.
-1.6a=+20
We divide both sides of the equation by -1.6 to get a.
a=-12.5
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