Решите уравнение 1)(1 целых 1/12+3.75)-(-x)=4.5 2)-(5 целых 2/3-1.6 )-x=6 целых 1/3

1) (1 1/12 + 3,75) (- х) = 4,5;

(13/12 + 375/100) + х = 45/10;

29/10 + х = 45/10;

х = 45/10 29/6;

х = - 10/30 = - 1/3.

2) (5 2/3 1,6) х = 6 1/3;

- (17/3 16/10) х = 19/3;

х = - 19/3 + 61/15;

х = - 34/15 = - 2 4/15.

3) х (7 5/9 5 1/6) = - 3,5;

х = (68/9 31/6) 3 5/10;

х = 43/18 35/10;

х = - 200/180 = - 10/9 = - 1 1/9.

4) x - (- 4 6/10 + 3 4/7) = - 8 1/14;

х + 72/70 = - 113/14;

х = - 113/14 72/70;

х = - 635/70 = - 9 1/14.