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3/4(2a-6)+1/2=2/5(3a+20)
We simplify the equation to the form, which is simple to understand
3/4(2a-6)+1/2=2/5(3a+20)
Reorder the terms in parentheses
+(+1.5a-4.5) + 0.5=0.4*(3a+20)
Remove unnecessary parentheses
+1.5a-4.5 + 0.5=0.4+*(+3a+20+)
Reorder the terms in parentheses
+1.5a-4.5 + 0.5=+(+1.2a+8)
Remove unnecessary parentheses
+1.5a-4.5 + 0.5=+1.2a+8
We move all terms containing a to the left and all other terms to the right.
+1.5a-1.2a=+8+4.5-0.5
We simplify left and right side of the equation.
+ 0.3a=+12
We divide both sides of the equation by 0.3 to get a.
a=40
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