What is the value of k if the point (5,k) is on the line 2y+3x = 7?

Answer 1

Hey Michael!

If you recognize (5, k) as the X and Y coordinates in the problem, you can substitute these values for "X" and "Y" in the equation:

Original Equation: 2y + 3x = 7

Substitute Values: 2(k) + 3 (5) = 7

Multiplication: 2k + 15 = 7

Subtract 15 from both sides: 2k = -8

Dive both sides of the equation by 2: k = -4

Hope this helps!

Answer 2

2k + 3(5) = 7

2k = -8

k = -4