Answer on Linear Algebra Question for Ankita Neogi
Then 5x + 7y = 195 and 7x + 5y = 153.
Solve this system of equations.
35x + 49y = 1365
35x + 25y = 765
24y = 600
y = 25
5x + 7*25 = 195
5x = 20
x = 4;
Answer: pencil costs Rs. 4, pen costs Rs. 25.
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