1.
Solve the equations x + 2y = 6 and 2x - 5y = 12 graphically
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Answer:
x = 6 - 2y
y = y = 6-x / 2
On substituting the x value in 1st equation we get :-
2 (6 - 2y) + 2y = 6
12 - 4y + 2y = 6
12 - 2y = 6
-2y = -6
y = 3.
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On substituting the y value in the 2nd equation
2x - 5(3) = 12
2x - 15 = 12
2x = -3
x = -3 / 2
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