10(a+3)+2a=15

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Solution for 10(a+3)+2a=15 equation: 



10(a+3)+2a=15

We move all terms to the left:

10(a+3)+2a-(15)=0

We add all the numbers together, and all the variables

2a+10(a+3)-15=0

We multiply parentheses

2a+10a+30-15=0

We add all the numbers together, and all the variables

12a+15=0

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

12a=-15

a=-15/12

a=-1+1/4

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