3a+5(25-a)=39

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Solution for 3a+5(25-a)=39 equation: 



3a+5(25-a)=39

We move all terms to the left:

3a+5(25-a)-(39)=0

We add all the numbers together, and all the variables

3a+5(-1a+25)-39=0

We multiply parentheses

3a-5a+125-39=0

We add all the numbers together, and all the variables

-2a+86=0

We move all terms containing a to the left, all other terms to the right

-2a=-86

a=-86/-2

a=+43

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