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

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



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

We move all terms to the left:

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

We multiply parentheses

9a-(2(2a+15))-30=0



We calculate terms in parentheses: -(2(2a+15)), so:

2(2a+15)

We multiply parentheses

4a+30

Back to the equation:

-(4a+30)



We get rid of parentheses

9a-4a-30-30=0

We add all the numbers together, and all the variables

5a-60=0

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

5a=60

a=60/5

a=12

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