-2a-1=4+5a

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Solution for -2a-1=4+5a equation: 



-2a-1=4+5a

We move all terms to the left:

-2a-1-(4+5a)=0

We add all the numbers together, and all the variables

-2a-(5a+4)-1=0

We get rid of parentheses

-2a-5a-4-1=0

We add all the numbers together, and all the variables

-7a-5=0

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

-7a=5

a=5/-7

a=-5/7

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