6a+5a-1=21

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Solution for 6a+5a-1=21 equation: 



6a+5a-1=21

We move all terms to the left:

6a+5a-1-(21)=0

We add all the numbers together, and all the variables

11a-22=0

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

11a=22

a=22/11

a=2

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