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

Question

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

Answer 1

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

Answer 2

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