Question

If 31x + 43y = 117 and 43 + 3ly = 105, then value of x-y is:
a) 1/3

b) -3

c) 3

d) 5​

Answer 1

Answer:Subtracting equation 1 from equation 2

$12x-12y=12\\x-y=1$

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Step-by-step explanation:

Answer 2

Answer:

a)1/3

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