the number of solution of pairs of linear equation 2x-4y=6 and 3x-6y =9 have
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2x -4y=6. and 3x-6y =9
x=2
2(2)-4y=6
4-4y=6
4y=6+4
4y=10
y=10/4
y=5/2
3x-6y=9
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