12-18x²+27x=36x-18x²+3x-10
12+27x=36x+3x-10
12+27x=39x-10
27x-39x=-10-12
-12x=-22
x=11
_
6
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12-18x²+27x=36x-18x²+3x-10
12+27x=36x+3x-10
12+27x=39x-10
27x-39x=-10-12
-12x=-22
x=11
_
6