100-a+50-a+3a+4=180

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Solution for 100-a+50-a+3a+4=180 equation: 



100-a+50-a+3a+4=180

We move all terms to the left:

100-a+50-a+3a+4-(180)=0

We add all the numbers together, and all the variables

a-26=0

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

a=26

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