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ai) 2x – 3y = 9

x -3 0 6
y -5 -3 1

aii) 3x + 2y – 7 = 0

x -2 3 6
y 6.5 -1 -5.5

b) See attached picture

c) From graph, the two lines intersect at (3, -1). Therefore, x = 3, y = -1.

 

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