Question

If k is equal to (2,-3) is a solution of 2x-3yplus k.Find k

Answer 1

(x,y) = (2,-3)
2x-3y+k = 0
2×2-3×(-3)+k = 0
4-(-9)+k = 0
4+9+k = 0
13+k = 0
k = -13

Verification:
2×2-3×(-3)-13 = 0
4-(-9)-13 = 0
4+9-13 = 0
13-13 = 0
0=0 (correct)

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Answer 2

hope it will help you