10a+3+2a=30

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Solution for 10a+3+2a=30 equation: 



10a+3+2a=30

We move all terms to the left:

10a+3+2a-(30)=0

We add all the numbers together, and all the variables

12a-27=0

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

12a=27

a=27/12

a=2+1/4

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