(14-x)*50=300 y: 9+48=60 72-56: z=64 - вопрос №1450300948607256646360142 от Аня1ove 08.04.2020 10:56

Question

Математика: (14-x)*50=300 y: 9+48=60 72-56: z=64

Аня1ove · Answer

( 14 - x )•50 = 300
14 - x = 300 : 50
14 - x = 6
X = 14 - 6
X = 8
•••••••••
Y : 9 + 48 = 60
Y : 9 = 60 - 48
Y : 9 = 12
Y = 12 • 9
Y = 108
••••••••••
72 - 56 : z = 64
56 : z = 72 - 64
z = 56 : 8
z = 7