3.4a+8.7a=38.7

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Solution for 3.4a+8.7a=38.7 equation: 



3.4a+8.7a=38.7

We move all terms to the left:

3.4a+8.7a-(38.7)=0

We add all the numbers together, and all the variables

12.1a-38.7=0

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

12.1a=38.7

a=38.7/12.1

a=3+1/5.0416666666667

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