रेखाएं (3x+2y=18) और (x-y=1) ग्राफ पर किस बिंदु पर मिलेंगी?
At which point will the lines (3x+2y=18) and (x-y=1) meet on the graph?
Explanation opens after your attempt
Correct Answer
A. ((4,3))
Concept
From (x-y=1), (y=x-1); substituting gives (3x+2x-2=18) and (x=4). Thus (y=3), so the intersection is ((4,3)).
Why this answer is correct
The correct answer is A. ((4,3)). From (x-y=1), (y=x-1); substituting gives (3x+2x-2=18) and (x=4). Thus (y=3), so the intersection is ((4,3)).
Exam Tip
(x-y=1) से (y=x-1), रखने पर (3x+2x-2=18) और (x=4)। इसलिए (y=3), अतः प्रतिच्छेद ((4,3)) है।
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