Question

Реши систему уравнений:

{2y+10x=7 10x−6y=0

​

Answer 1

Ответ:

x=0.525

y=0.875

Объяснение:

2y+10x=7

10x−6y=0

10x=7-2y

10x-6y=0

x=7/10-y/5

10x-6y=0

x=7/10-y/5

10(7/10-y/5)-6y=0

x=7/10-y/5

7-8y=0

x=7/10-y/5

8y-7=0

x=7/10-y/5

8y=7

x=7/10-y/5

y=7/8

x=21/40

y=7/8

x=0.525

y=0.875