Question

if 47 X + 31 Y =10 and 31 X + 47 Y= 60 find the value of x + Y​

Answer 1

HEY MATE HERE'S HOW TO SOLVE IT.

47X +31Y = 10 ............... Eq1

31X + 47Y =60 ................Eq2

ADD Eq1 and Eq2

This gives

78(X+Y)= 70

THERFORE

X+Y = 70/78 = 35/39