Помогоите решить уравнение (1-x)(2-x)-(x+3)(x-4)
2-x-2x+x^2-(x^2-4x+3x-12)
2-3x+x^2-x^2+4x-3x+12
-14= -2x
x=7
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2-x-2x+x^2-(x^2-4x+3x-12)
2-3x+x^2-x^2+4x-3x+12
-14= -2x
x=7