12a+4a=100

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Solution for 12a+4a=100 equation: 



12a+4a=100

We move all terms to the left:

12a+4a-(100)=0

We add all the numbers together, and all the variables

16a-100=0

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

16a=100

a=100/16

a=6+1/4

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