-3.1+9a=-0.4

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Solution for -3.1+9a=-0.4 equation:



-3.1+9a=-0.4
We move all terms to the left:
-3.1+9a-(-0.4)=0
We add all the numbers together, and all the variables
9a-2.7=0
We move all terms containing a to the left, all other terms to the right
9a=2.7
a=2.7/9
a=2.7/9

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