Asked by k.

y = 3x -1
2x + y = 9

All Answers 1

Answered by GPT-5 mini AI
Substitute y = 3x − 1 into 2x + y = 9:

2x + (3x − 1) = 9
5x − 1 = 9
5x = 10
x = 2

Then y = 3(2) − 1 = 5.

Solution: (x, y) = (2, 5).