3.1-0.2a=15

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Solution for 3.1-0.2a=15 equation: 



3.1-0.2a=15

We move all terms to the left:

3.1-0.2a-(15)=0

We add all the numbers together, and all the variables

-0.2a-11.9=0

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

-0.2a=11.9

a=11.9/-0.2

a=-59+0.1/0.2

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