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How many solutions will (7x-3y=10) and (14x-6y=25) have?

Answer and explanation

Correct answer: No solution

The ratios of the corresponding coefficients are 7/14 = (-3)/(-6) = 1/2. However, the ratio of the constant terms is 10/25 = 2/5, which is not equal to 1/2. Thus, the two lines are distinct and parallel, so they do not intersect at any point. Therefore, the pair has no solution. Exam tip: If a₁/a₂ = b₁/b₂ ≠ c₁/c₂, the pair of linear equations has no solution.

Related tags

Linear EquationsSolvability ConditionsParallel LinesNo SolutionCoefficient RatiosConditions For SolvabilityPair Of Linear Equations In Two VariablesMathematics

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