3(4a+5)=45

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Solution for 3(4a+5)=45 equation: 



3(4a+5)=45

We move all terms to the left:

3(4a+5)-(45)=0

We multiply parentheses

12a+15-45=0

We add all the numbers together, and all the variables

12a-30=0

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

12a=30

a=30/12

a=2+1/2

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