Question

(iii) If 5x+4y= 13 and 4x + 5y=14, find the value of (x - y).
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Answer 1

Answer:

-1

Step-by-step explanation:

5x+4y=13 . Eq.1

4x+5y=14 Eq.2

Subtracting Eq.2 from Eq.1

5x+4y-(4x+5y)=13-14

5x+4y-4x-5y= -1

x-y = -1

Therefore the correct answer is -1.

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