Q. 5 B4.6( 9 Votes )

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

2x – 3y = 8

Answer :

expressing the equations in terms of one variable

2x – 3y = 8


3x + 3y = 7x – 7y

4x = 10y


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

8 + 3y = 5y

2y = 8

y = 4 ………[3]

by using [3] in [1]

x = 10

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