Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
0 reads0 ratings0 helpful

Which statement is correct about 4x + 7y = 31 and 8x + 14y = 65?

Answer and explanation

Correct answer: There is no solution

Compare the two equations using the elimination principle. Multiplying the first equation by 2 gives 8x + 14y = 62, while the second equation is 8x + 14y = 65. The left-hand sides are identical but the constants are different. Subtracting the two equations would therefore give 0 = 3, which is impossible. Geometrically, the equations represent distinct parallel lines, so they never intersect. Hence the pair is inconsistent and has no solution; option A is correct. Infinitely many solutions would require both equations to be exact multiples, including the constant term, and one or two solutions do not apply to a pair of linear equations in this form.

Related tags

Pair-Of-Linear-EquationsInconsistent-SystemNo-SolutionConditions-For-SolvabilityAlgebraic Methods: Substitution Method And Elimination Method.Algebraic Methods Substitution Method And Elimination MethodPair Of Linear Equations In Two VariablesMathe

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.