45+2a+a+3=180

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Solution for 45+2a+a+3=180 equation: 



45+2a+a+3=180

We move all terms to the left:

45+2a+a+3-(180)=0

We add all the numbers together, and all the variables

3a-132=0

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

3a=132

a=132/3

a=44

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