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3. Pair of Linear Equations in Two Variables
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Q27 of 266 Page 3

Solve the following systems of equations:




Multiplying eq1 by 2 and adding to eq2


⇒ 15/(x + y) = 5


⇒ x + y = 3 ------- (3)


Multiplying eq1 by 3 and subtracting eq2 from it


⇒ 10/(x – y) = 5


⇒ x – y = 2 ---- (4)


Adding the two equation


⇒ 2x = 5


⇒ x = 5/2


Thus, y = 1/2


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