यदि (x+y=5) हो, तो (2(x+y)-3) का मान क्या होगा?
If (x+y=5), what is the value of (2(x+y)-3)?
Explanation opens after your attempt
A. (7)
Concept
Replace the whole (x+y) by (5). Then (2(5)-3=7).
Why this answer is correct
The correct answer is A. (7). Replace the whole (x+y) by (5). Then (2(5)-3=7).
Exam Tip
पूरे (x+y) को (5) से बदलें। तब (2(5)-3=7) होगा।
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