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1/5(a+4)=1/4(9-a)
We simplify the equation to the form, which is simple to understand
1/5(a+4)=1/4(9-a)
Reorder the terms in parentheses
+( + 0.2a + 0.8)=0.25*(9-a)
Remove unnecessary parentheses
+ 0.2a + 0.8=0.25+*(+9-a+)
Reorder the terms in parentheses
+ 0.2a + 0.8=+(+2.25-0.25a)
Remove unnecessary parentheses
+ 0.2a + 0.8=+2.25-0.25a
We move all terms containing a to the left and all other terms to the right.
+ 0.2a + 0.25a=+2.25-0.8
We simplify left and right side of the equation.
+ 0.45a=+1.45
We divide both sides of the equation by 0.45 to get a.
a=3.2222222222222
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