Question

Solve the following system of equations. Enter the y-coordinate of the

solution. Round your answer to the nearest tenth.
5x+y=21
- 2x + 61=-34

Answer 1

(13.5,-46.5)

Explanation:

Since equation 2 is missing y, then x is a constant

-2x + 61 = 34

-2x = 34 - 61

-2x = -27

x = 13.5

Then plug x into the 1st

5x + y = 21

5 * (13.5) + y = 21

67.5 + Y = 21

y = 21 - 67.5

y = -46.5

So the point satisfying both equations is (13.5,-46.5)