Medium Math Class 9 Level 2

What is the value of x in 4x + 9 = 2x + 21?

समीकरण 4x + 9 = 2x + 21 में x का मान क्या है?

A) 4 / 4 B) 5 / 5 C) 6 / 6 D) 7 / 7
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Correct Answer

C. 6 / 6

Explanation

4x - 2x = 21 - 9 so 2x = 12 and x = 6.

4x - 2x = 21 - 9 इसलिए 2x = 12 और x = 6।

Related Questions

Easy Math Class 10 Level 1

What is the area of a circle with radius 7 cm when π = 22/7?

7 सेमी त्रिज्या वाले वृत्त का क्षेत्रफल कितना होगा जब π = 22/7 हो?

A. 44 सेमी² / 44 cm² B. 77 सेमी² / 77 cm² C. 154 सेमी² / 154 cm² D. 308 सेमी² / 308 cm²
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