9a-2a+4a-9a-2=8

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Solution for 9a-2a+4a-9a-2=8 equation: 



9a-2a+4a-9a-2=8

We move all terms to the left:

9a-2a+4a-9a-2-(8)=0

We add all the numbers together, and all the variables

2a-10=0

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

2a=10

a=10/2

a=5

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