if 3
then what is the value of
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Answered by
2
Answer:
3x+5y=9-----(1)
5x+3y=7-----(2)
multiplying eq(1) by 5 & eq(2) by 3 we get
15x+25y=45
-15x ± 9y= - 21
_____________
16y=24
y = 24/16 = 3/2
and
x = 9-5x3/2/3 = -1/2
hence x = 1/2 and y = 3/2
so x + y = 1/2 + 3/2 = 2
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