((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
((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