Question

solve for x and y : 47x+31y=63 and 31x+47y=15.​

Answer 1

Answer:

Step-by-step explanation:

47x+31y=63

31x+47y=15

Adding both equations

47x+31x+31y+47y=63+15

78x+78y=78

78(X+y)=78

x+y=1

X is 1 and y is 0

Answer 2

Answer:

31 (47x+31y=63)

47 (31x+47y=15)

1457x+961y=1953

1457x+2409y=705

subtracting we get

-1548y=1248

y=1238/1548=