Question

Реши уравнение:
(5/7z−1/4)⋅3/16=3/16.

Answer 1

((5/7)z−1/4) *3/16=3/16

((5/7)z−1/4) =3/16:3/16

(5/7)z−1/4=1

(5/7)z= 1 + 1/4

(5/7)z= 5/4

z= 5/4 :5/7 =5/4 * 7/5

z= 7/4= 1 3/4 = 1,75

3/7m+2/5=1

3/7m=1 -2/5

3/7m = 3/5

m = 3/5 : 3/7 = 3/5 *7/3

m=7/5 = 1 2/5= 1.4

Answer 2

обнови страничку