Question

Помогите с уравнением, даю 50 баллов!!! Срочно!

Answer 1

( 3/4х + 1/7х ) × 28 = 75.

25/28х × 28 = 75

25х = 75

х = 3.

Answer 2

(¾+1/7)х × 28 = 75

(21/28+4/28)х × 28 = 75

25/28х × 28 = 75

25/28х = 75 ÷ 28

25/28х = 2 19/28

х = 2 19/28 ÷ 25/28

х = 75/28 : 25/28

х = 75×28/28×25

х = 3