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For two numbers, the equations (5x+2y=31) and (2x-3y=4) are formed. What will be the solution status?

Answer and explanation

Correct answer: One unique solution

For the given equations, \(a_1=5, b_1=2\) and \(a_2=2, b_2=-3\). Since \(\frac{a_1}{a_2}=\frac{5}{2}\) is not equal to \(\frac{b_1}{b_2}=\frac{2}{-3}\), the two lines intersect at exactly one point. Hence, the pair has one unique solution. No solution or infinitely many solutions can occur only when these two ratios are equal. Exam tip: compare \(\frac{a_1}{a_2}\) and \(\frac{b_1}{b_2}\) first.

Related tags

Pair Of Linear EquationsConditions For SolvabilityUnique SolutionLinear GraphsGrade 10 MathematicsPair Of Linear Equations In Two VariablesMathematicsClass 10 Mcq

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