Question

What is the y-coordinate of the solution of the system of equations?

{y=3x−26
{2x−y=19
Enter your answer in the box.
y =

Answer 1

so i have just taken this very test and the answer y=-5

Explanation:

Answer 2

The solution will be (7,-5), so the y-value is -5
`${y=3x-26 \atop y=2x-19}$ We can subtract y=2x-19 from the top, resulting in 0=x-7, or x=7. If we then put x=7 into the top formula, we get: y=3(7)-26 y=21-26 y=-5`