Решите уравнения: А)2х²-(2х²-5х)-(4х-2)=5
Б)(у³+у)+(3-6у)-(4-5у)=-2
В)(х²-7х-11)-(5х²-13х-18)=16-4х²
Г)(у²-5у^5-19)-(5у²-6у^5-9)=22-4у²
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