Question

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

{y=3x−262x−y=19

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y =

Answer 1

Answer: y = -5

Explanation:

Based on formatting, it's hard to tell what the equations are. But I'm going to assume it's y = 3x - 26 and 2x - y = 19.

First, isolate a variable in one of the equations. I'm going to use 2x - y = 19.

2x - y = 29

2x = 29 + y

y = 2x - 19

Substitute the new y-value into the other equation y = 3x - 26

y = 3x - 26

2x - 19 = 3x - 26

Now solve for x.

-19 = x - 26

x = 7

Plug x = 7 into one of the equations to solve for y.

y = 3x - 26

y = 3(7) - 26

y = 21 - 26

y = -5