(10) If (2, 5) is a solution of the equation 4x + ky = 23, find k._______________
please give me right Answer
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(2,5) are the values given
4x + ky = 23
4(2) + k(5) = 23
8 + 5k = 23
5k = 23 - 8
5k = 15
k = 15/5
k = 3
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