1a-15=4a-13

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Solution for 1a-15=4a-13 equation: 



1a-15=4a-13

We move all terms to the left:

1a-15-(4a-13)=0

We add all the numbers together, and all the variables

a-(4a-13)-15=0

We get rid of parentheses

a-4a+13-15=0

We add all the numbers together, and all the variables

-3a-2=0

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

-3a=2

a=2/-3

a=-2/3

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