(1целая 2/3 - 37/75) умнож ** Х = 2целых 1/3 - 4 целых 1/5)

Question

(1целая 2/3 - 37/75) умнож на Х = 2целых 1/3 - 4 целых 1/5)

Answer 1

1²/₃х-³⁷/₇₅х=2¹/₃-4

5х/3-37х/75=7/3-4

125х-37х=175-300

88х=-125

х=-1⁴⁰/₈₈=-1⁵/₁₁≈-1,42

РЕШЕНО ПРАВИЛЬНО!!!

Answer 2

(1 2/3 - 37/75) * Х = 2 1/3 - 4 1/5                        

                               1 2/3 - 37/75 = 1 50/75 - 37/75 =  1 13/75

                               2 1/3 - 4 1/5 = 2 5/15 - 4 3/15 = - (4 3/15 - 2 5/15) =

                                 = - (3  18/15 -  2 5/15) = - 1 13/15

1 13/75 * Х = - 1 13/15

Х = 1 13/75 : (- 1 13/15)

Х = 88/75 : (-28/15)

Х = - 88 *15/ 75*28

Х = - 22 / 5 * 7

Х = - 22/35

 

Ответ: Х = - 22/35.