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Question

On comparing the ratios a1a2,b1b2 and c1c2, find out whether the following pair of linear equations are consistent, or inconsistent
3x+2y=5; 2x3y=7

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Solution

3x2y5=0(1)
2x3y7=0(2)
3x+2y5=0
Comparing with a1x+b1y+c1=0
a1=3,b1=2,c1=5

2x3y7=0
Comparing with a2x+b2y+c2=0
a2=2,b2=3,c2=7
a1a2=32,b1b2=23,c1c2=57
Since, a1a2b1b2
We have a unique solution.
System of equation is consistant.

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