2a+5a=8

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Solution for 2a+5a=8 equation: 



2a+5a=8

We move all terms to the left:

2a+5a-(8)=0

We add all the numbers together, and all the variables

7a-8=0

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

7a=8

a=8/7

a=1+1/7

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