13+4a+2a=+1

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Solution for 13+4a+2a=+1 equation: 



13+4a+2a=+1

We move all terms to the left:

13+4a+2a-(+1)=0

We add all the numbers together, and all the variables

4a+2a+13-1=0

We add all the numbers together, and all the variables

6a+12=0

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

6a=-12

a=-12/6

a=-2

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