Question

Решите уравнение:
1) (1 1/12+3,75)-(-x)=4,5 2) x-(7 5/9-5 1/6)=-3,5

Answer 1

1) 1 1/12+ 3 3/4+ Х = 4 1/2;
Х= 4 1/2-1 1/12- 3 3/4 = 4-1-3 1•6/12-1•1/12-3•4/12= -7/12;
2) Х-7 5/9+5 1/6= -3 1/2;
Х= -3 1/2+ 7 5/9 - 5 1/6= 7 5/9-3 1/2=4 5•2/18-1•3/18= 4 7/18= -5 1/6+4 7/18= -1 1•3/18+7/18=-1(-2/9)=1 2/9;

Answer 2

2) - 1 2/9;