If x = -1, y = 4 is the solution of the equation 3x + 5y – k = 0 , find the value of k.
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Answer:
17
Step-by-step explanation:
3x(-1) + 5(4) - k = 0
-3 + 20 - k = 0
20 - k = 3
-k = 3 - 20
-k = -17
... k = 17
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