решите уравнение : 1) x-(-1 2\3)=-4 5\6 2) t-2 4\7=-3 5\21

2\3x=-4 5\6x=-4 5\6 : 2\3x=-29\6 * 3\2x= -29\4 = -7,25

1) х - (-1 2/3) = -4 5/6x + 1 2/3 = -4 5/6x = -4 5/6 - 1 2/3x = -29/6 -5/3x= -29/6 -10/6x= -39/6 = -6 3/6= -6 1/2_____________________2)t - 2 4/7 = -3 5/21t = -3 5/21 + 2 4/7t = - 68/21 + 18/7t= -68/21 + 54/21t = -14/21t= -2/3