55=5*2a-1

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Solution for 55=5*2a-1 equation: 



55=5*2a-1

We move all terms to the left:

55-(5*2a-1)=0

We get rid of parentheses

-5*2a+1+55=0

We add all the numbers together, and all the variables

-5*2a+56=0

Wy multiply elements

-10a+56=0

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

-10a=-56

a=-56/-10

a=5+3/5

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