Решить уравнения: * 1) -1 1/2*(х+1 3/4)= -1 1/2 - вопрос №25507441112134112213161946 от NickMean 30.11.2021 11:48

Question

Математика: Решить уравнения: * 1) -1 1/2*(х+1 3/4)= -1 1/2 2)1/3у+1/6у+1/9у= -4/6

NickMean · Answer

1) -1 1/2*(х+1 3/4)= -1 1/2х + 1 3/4 = 1х = 1 - 1 3/4х = -3/42)1/3у+1/6у+1/9у= -4/66/18у + 3/18у + 2/18у = -4/611/18у = -4/6у = -4/6 : 11/18у = -4/6 * 18/11у = -12/11 = -1 1/11...