4a-45=2a-9

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Solution for 4a-45=2a-9 equation: 



4a-45=2a-9

We move all terms to the left:

4a-45-(2a-9)=0

We get rid of parentheses

4a-2a+9-45=0

We add all the numbers together, and all the variables

2a-36=0

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

2a=36

a=36/2

a=18

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