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-0.1a-2.4=-1.6
We move all terms to the left:
-0.1a-2.4-(-1.6)=0
We add all the numbers together, and all the variables
-0.1a-0.8=0
We move all terms containing a to the left, all other terms to the right
-0.1a=0.8
a=0.8/-0.1
a=-8
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