10a+5(a-3)=5a+7

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Solution for 10a+5(a-3)=5a+7 equation: 



10a+5(a-3)=5a+7

We move all terms to the left:

10a+5(a-3)-(5a+7)=0

We multiply parentheses

10a+5a-(5a+7)-15=0

We get rid of parentheses

10a+5a-5a-7-15=0

We add all the numbers together, and all the variables

10a-22=0

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

10a=22

a=22/10

a=2+1/5

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