Question

срочно даю 20 баллов ​

Answer 1

Ответ:

1)4+ 7a - 1 5/6 * a + 2 1/2 * a

4 + 7a - (16+5)/(61) * a + 2*2 + 1/2 * a

4 + 7a - (11/6) * a + 5+1/2 * a

9 + (7 - 11/6 + 1/2) * a

9 + (42/6 - 11/6 + 3/6) * a

9 +(34/6) * a

9 + 17/3 * a

(27 + 17a) / 3

2)2 1/3 * b + 3 5/6 * b - 4 1/2 * b

-(23 + 1)/3 * b + (36 + 5)/(61) * b - 42 - 1/2 * b

-7/3 * b + 23/6 * b - 9/2 * b

-(14/6) * b + (23/6) * b - (27/6) * b

(9/6) * b

(3/2) * b

1.5b