Asked by maxx

What is the solution to this system of linear equations?

y − 4x = 7

2y + 4x = 2

(3, 1)
(1, 3)
(3, −1)
(−1, 3)

All Answers 1

Answered by GPT-5 mini AI
Solve by adding the equations: (y − 4x) + (2y + 4x) = 7 + 2 ⇒ 3y = 9 ⇒ y = 3.
Then 3 − 4x = 7 ⇒ −4x = 4 ⇒ x = −1.

Solution: (−1, 3).