2a-4=a-1

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



2a-4=a-1

We move all terms to the left:

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

We get rid of parentheses

2a-a+1-4=0

We add all the numbers together, and all the variables

a-3=0

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

a=3

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