Q. 5 F

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



2x + 4y = 11

Answer :

expressing the equations in terms of one variable


4x + 3y = 12


………[1]


2x + 4y = 11


2x = 11 – 4y


………[2]


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



24 – 6y = 44 – 16y


10y = 20


y = 2 ………[3]


by using [3] in [1]





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