2t+5t+3,18=25,3 -первое уравнение,8p-2p-14,21=75,19-второе уравнение.! уравнения!

2t+5t+3,18=25,3

7t=25.3-3.18

7t=22.12

t=3.16

,8p-2p-14,21=75,19

6p=75.19+14.21

6p=89.4

p=14.9

2t+5t=7t+3.18=25.3

7t=25.3-3.18

7t=22.12

t=22.12 : 7

t=3.16

 8p-2p=6p - 14.21 = 75.19

6p = 75.19 + 14.21 = 89.4

p= 89.4 : 6

p= 14.9