Q2.Solve the following pair of equations by graphical method 2x - 2y - 2 = 0 4x - 4y - 8 =0
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answer-
multiplying equation 2x-2y = 2 by 2
we get
4x-4y=4
substraction this from equation 4x-4y=8
4x-4y=8
- 4x-4y = 4
____________
4
4 is the answer
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