यदि (x+y=9) और (y=4), तो (x) का मान क्या है?
If (x+y=9) and (y=4), what is the value of (x)?
Explanation opens after your attempt
C. (x=5)
Concept
Putting (y=4) gives (x+4=9), so (x=5). After substitution, use simple subtraction carefully.
Why this answer is correct
The correct answer is C. (x=5). Putting (y=4) gives (x+4=9), so (x=5). After substitution, use simple subtraction carefully.
Exam Tip
(y=4) रखने पर (x+4=9), इसलिए (x=5)। परीक्षा में प्रतिस्थापन के बाद सरल घटाव करें।
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