Q5 of 92 Page 71

Let us solve the following simultaneous equations in two variables by the method of comparison:


expressing the equations in terms of one variable


⇒ 6y + 6x = 5xy


⇒ x(5y - 6) = 6y


………[1]



⇒ 6y – 6x = xy


⇒ x(y + 6) = 6y


………[2]


by comparing eq. [1] and eq. [2]



⇒ y + 6 = 5y – 6


⇒ 4y = 12


⇒ y = 3 ………[3]


by using [3] in [1]






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