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(i) 3x + 2y = 5, 2x − 3y = 8
(ii) 2x − 3y = 7, 4x − 6y = 9
(iii) 3x/2 + 5y/3 = 7, 9x − 10y = 14
(iv) 5x − 3y = 11, −10x + 6y = −22
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(i) 3x + 2y = 5, 2x − 3y = 7
Comparing equation 3x + 2y = 5 with a1x + b1y + c1 = 0and 7x + 6y – 9 = 0 with a2x + b2y + c2 = 0,
Therefore,these linear equations will intersect at one point only and have only one possible solution.
And,pair of linear euations is consistent
(ii) 2x − 3y = 8, 4x − 6y = 9
Comparing equation 2x − 3y = 8 with a1x + b1y + c1 = 0and 7x + 6y – 9 = 0 with a2x + b2y + c2 = 0,
We get,
Therefore,these linear equations are parallel to each other and have no possible solution.in
And,pair of linear euations is inconsistent
(iii) 3x/2 + 5y/3 = 7, 9x − 10y = 14
Therefore, these linear equations will intersect each other at one point and have only one possible solution.
And,pair of linear euations is consistent
(iv) 5x − 3y = 11, −10x + 6y = −22
Comparing equation 5x − 3y = 11 with a1x + b1y + c1 = 0and 7x + 6y – 9 = 0 with a2x + b2y + c2 = 0,
We get,
Therefore these pair of lines have infinite number of solutions
And,pair of linear euations is consistent
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