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If (5,k) is a solution of the equation 2x+y=-7=0, Find the value of k.


If (5,k) is a solution of the equation 2x+y=-7=0, Find the value of k. ​-example-1

2 Answers

3 votes

Answer:

k = -17

Explanation:

Substitute the solution (5, k) into the equation :

  • 2x + y = -7 = 0
  • 2x + y + 7 = 0
  • 2(5) + k + 7 = 0
  • 17 + k = 0
  • k = -17
User Slava Knyazev
by
8.6k points
5 votes

k = -3

Explanation:

2x + y - 7 = 0

2x + y + k - 7 = 0

10 + k - 7 = 0

3 + k = 0

k = -3

User Avmohan
by
8.4k points

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