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3. Pair of Linear Equations in Two Variables
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Q39 of 266 Page 3

Solve the following systems of equations:




Multiplying eq1 by 5 and eq2 by 4 and subtracting


⇒ -10/(x – y) = -2


⇒ x – y = 5


Multiply eq1 by 4 and eq2 by 3 and subtracting


⇒ 11/(x + y) = 1


⇒ (x + y) = 11


Thus, 2x = 16


⇒ x = 8


∴ y = 8 – 5 = 3


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Questions · 266
3. Pair of Linear Equations in Two Variables
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