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-3.6-5x=11.9
We move all terms to the left:
-3.6-5x-(11.9)=0
We add all the numbers together, and all the variables
-5x-15.5=0
We move all terms containing x to the left, all other terms to the right
-5x=15.5
x=15.5/-5
x=-3+0.5/5
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