Question

47x+31y=63. 31x+47y=15 by cross multiplication method​

Answer 1

Answer:

,

Step-by-step explanation:

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Answer 2

Answer:

47x + 31y - 63 =0

31x + 47y - 15 =0

x. y. 1

+ 31. - 63. + 47. + 31

+ 47. - 15. + 31. + 47

by cross multiplication

x/(31*-15) - (47*-63) = y /(-63*+31) - (-15*+47) = 1 / (+47*+47) - (+31*+31)

x/2496 = y / -1248 = 1/ 1248

X/2496 = 1/1248

x/1 = 2496 / 1248

x = 2

y/ 1248 = 1/ 1248

y /1 = - 1248/ 1248

y = -1