Question

100x+50y=2500 x+y=30ವರ್ಜಿಸುವ ವಿವಿಧಾನದಿಂದ ಲೆಕ್ಕ

Answer 1

Step-by-step explanation:

x+y=30

x=30-y

substitute value for x

100(30-y)+50y=2500

50y=500

y=100

substitute in first equation to get x

x+y=30

x+100=30

x= -70