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-4(-16.38x-12.96)+3(-27.36x-22)=0
We multiply parentheses
64x-81x+51.84-66=0
We add all the numbers together, and all the variables
-17x-14.16=0
We move all terms containing x to the left, all other terms to the right
-17x=14.16
x=14.16/-17
x=-12.206896551724/14.655172413793
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