1+2a-8=7

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Solution for 1+2a-8=7 equation: 



1+2a-8=7

We move all terms to the left:

1+2a-8-(7)=0

We add all the numbers together, and all the variables

2a-14=0

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

2a=14

a=14/2

a=7

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