0.5a+0.2(75-a)=0.3(75)

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Solution for 0.5a+0.2(75-a)=0.3(75) equation:


0.5a + 0.2(75-a)=0.3(75)

We simplify the equation to the form, which is simple to understand 
0.5a + 0.2(75-a)=0.3(75)

Reorder the terms in parentheses
0.5a+(+15-0.2a)=0.3*(75)

Remove unnecessary parentheses
 + 0.5a+15-0.2a=0.3+*(+75+)

Reorder the terms in parentheses
0.5a+15-0.2a=+(+22.5)

Remove unnecessary parentheses
 + 0.5a+15-0.2a=+22.5

We move all terms containing a to the left and all other terms to the right. 
 + 0.5a-0.2a=+22.5-15

We simplify left and right side of the equation. 
 + 0.3a=+7.5

We divide both sides of the equation by 0.3 to get a. 
a=25

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