4a+13=45

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Solution for 4a+13=45 equation: 



4a+13=45

We move all terms to the left:

4a+13-(45)=0

We add all the numbers together, and all the variables

4a-32=0

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

4a=32

a=32/4

a=8

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