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If \(6x+4y=40\) and \(3x+2y=22\), what is true about the solutions?

Answer and explanation

Correct answer: No solution

Compare the equations after reducing the first one by dividing every term by 2. The first equation becomes \(3x+2y=20\), whereas the second equation is \(3x+2y=22\). Their left-hand sides are identical, but their constants differ, so the two equations represent distinct parallel lines. Parallel distinct lines never intersect; consequently, no ordered pair \((x,y)\) can satisfy both equations at the same time. Hence option B, “No solution,” is correct. Infinitely many solutions would require the two equations to be identical, while one solution would occur if the corresponding lines intersected. The phrase “two solutions” is not applicable to a consistent pair of linear equations in this form.

Related tags

Pair Of Linear EquationsInconsistent EquationsNo SolutionAlgebraic Methods: Substitution Method And Elimination Method.Algebraic Methods Substitution Method And Elimination MethodPair Of Linear Equations In Two VariablesMathematicsClass 10 Mcq

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