Question

Solve.
y = 2x - 5
y = -2x - 9

Answer 1

(-1,-7)

Explanation:

Substitute 2x-5 (from the first equation) as the y-value for the second equation, so you have something that looks like this:

2x-5 = -2x-9

Add 2x to both sides: 4x-5 = -9

Add 5 to both sides 4x = -4

Divide both sides by 4: x = -1

Substitute -1 for x in either equation (you'll get the same y-value)