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What is the correct solution status for (14x-7y=28) and (2x-y=3)?

Answer and explanation

Correct answer: No solution

For the coefficients, \(\frac{a_1}{a_2}=\frac{14}{2}=7\) and \(\frac{b_1}{b_2}=\frac{-7}{-1}=7\), but \(\frac{c_1}{c_2}=\frac{28}{3}\). Thus, \(\frac{a_1}{a_2}=\frac{b_1}{b_2}\neq\frac{c_1}{c_2}\), which represents an inconsistent pair of equations and two distinct parallel lines. Therefore, there is no solution. Option B would be correct only if all three ratios were equal, while option A requires the first two ratios to be unequal. Exam tip: Compare the corresponding ratios in the same order.

Related tags

Linear EquationsNo SolutionParallel LinesSolvability ConditionsConditions For SolvabilityPair Of Linear Equations In Two VariablesMathematicsClass 10 Mcq

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