(i)37x+41y=70 (ii)41x+37y=86

Asked by mukul rao | 17th Jun, 2013, 12:55: PM

Expert Answer:

37x+41y=70     (1)

41x+37y=86     (2)

Adding both the equations,

78x + 78y=156

78(x+y)=156

x+y=2              (3)

Subtracting (2) from (1),

-4x+4y= -16

x-y=8              (4)

Adding (3) and (4), we get,

2x=10

x=5

From (3), y=2-x=2-5=-3

Answered by  | 17th Jun, 2013, 02:11: PM

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