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 (p+q=6) and (p-q=2), what is the value of (3p-q)?

Answer and explanation

Correct answer: 10

Adding \(p+q=6\) and \(p-q=2\) gives \(2p=8\), so \(p=4\). Substituting \(p=4\) into \(p-q=2\) gives \(q=2\). Hence, \(3p-q=3(4)-2=10\). The value \(12\) is only \(3p\); \(q\) must also be subtracted. Exam tip: Add or subtract a pair of linear equations first to eliminate one variable.

Related tags

Algebraic ExpressionsLinear EquationsSubstitutionEliminationPolynomialsIntroduction To PolynomialsMathematicsClass 9 Mcq

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.