18a+7a-3=3a-15

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Solution for 18a+7a-3=3a-15 equation: 



18a+7a-3=3a-15

We move all terms to the left:

18a+7a-3-(3a-15)=0

We add all the numbers together, and all the variables

25a-(3a-15)-3=0

We get rid of parentheses

25a-3a+15-3=0

We add all the numbers together, and all the variables

22a+12=0

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

22a=-12

a=-12/22

a=-6/11

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