10a+10+5a=130

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Solution for 10a+10+5a=130 equation: 



10a+10+5a=130

We move all terms to the left:

10a+10+5a-(130)=0

We add all the numbers together, and all the variables

15a-120=0

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

15a=120

a=120/15

a=8

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