1-7a=-13

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Solution for 1-7a=-13 equation: 



1-7a=-13

We move all terms to the left:

1-7a-(-13)=0

We add all the numbers together, and all the variables

-7a+14=0

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

-7a=-14

a=-14/-7

a=+2

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