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

If (6x-y=21) and (2x+3y=17), which is the correct solution?

Answer and explanation

Correct answer: \(x=4,\ y=3\)

From the first equation, \(y=6x-21\). Substituting this into \(2x+3y=17\) gives \(2x+3(6x-21)=17\), so \(20x=80\). Hence, \(x=4\) and \(y=3\), making option C correct. For example, \(x=5, y=1\) gives \(13=17\) in the second equation, so it is not a solution. Exam tip: Always verify the ordered pair in both original equations.

Related tags

Pair Of Linear EquationsSubstitution MethodAlgebraic MethodsOrdered PairClass 10 MathematicsAlgebraic Methods: Substitution Method And Elimination Method.Algebraic Methods Substitution Method And Elimination MethodPair Of Linear Equations In Two Va

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.