1. Find three different solutions of the each of the following equations.
EXERCISE - 6.2
iii) 2x - y=7
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2x - y = 7 ---------(1)
put x=1 equation (1)
2×1 - y = 7
2 - y = 7
- y = 7-2
- y = 5
y = -5
(1,-5)
put x=2 equation (1)
2×2 - y = 7
4 - y = 7
- y = 7 - 4
-y = 3
y = -3
(2,-3)
put x= -1 equation (1)
2 × -1 - y = 7
-2 - y = 7
- y = 7 + 2
- y = 9
y = -9
(-1,-9)
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