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2(a+1.6)-5(2-a)=-1.9
We simplify the equation to the form, which is simple to understand
2(a+1.6)-5(2-a)=-1.9
Reorder the terms in parentheses
+(+2a+3.2)-5*(2-a)=-1.9
Remove unnecessary parentheses
+2a+3.2-5+*(+2-a+)=-1.9
Reorder the terms in parentheses
+2a+3.2+(-10+5a)=-1.9
Remove unnecessary parentheses
+2a+3.2-10+5a=-1.9
We move all terms containing a to the left and all other terms to the right.
+2a+5a=-1.9-3.2+10
We simplify left and right side of the equation.
+7a=+4.9
We divide both sides of the equation by 7 to get a.
a=0.7
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