9x-5y=-1;4x-3y=-2 solve by substitution method – InterviewSolution

1.

9x-5y=-1;4x-3y=-2 solve by substitution method

Answer»

9x - 5y = - 19x = 5y - 1x = (5y - 1)/9.......(1)

4x - 3y = - 2.........(2)

Put value of x from eq(1) in eq(2)4*(5y - 1)/9 - 3y = - 220y - 4 - 27y = - 18-7y = - 18 + 4-7y = - 14y = 14/7 = 2

Now, put value of y in eq(1)x = (5*2 - 1)/9 = 9/9 = 1

Therefore,Value of x = 1, y = 2

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