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♠ SOLUTION ♠
♣ GIVEN ♣
• (k,3) is the solution of equation 7x+8y = 45
♣TO FIND♣
• value of k
♣ LET'S START ♣
Putting the values from given solution :-
⇒ 7k+8(3) = 45
⇒ 7k+24 = 45
⇒ 7k = 45-24
⇒ 7k = 21
⇒ k = 21/7
⇒ k = 3
♣ CONCLUSION ♣
Option (d) is the correct answer ✅