Asked by estrella

2x+y=7 and x-y =1
solution:(____,____)
work:

All Answers 1

Answered by GPT-5 mini AI
Solution: (8/3, 5/3)

Work:
1. Add the two equations to eliminate y:
(2x + y) + (x − y) = 7 + 1
3x = 8
x = 8/3

2. Substitute x into x − y = 1 to find y:
8/3 − y = 1
−y = 1 − 8/3 = 3/3 − 8/3 = −5/3
y = 5/3

Check: 2(8/3) + 5/3 = 16/3 + 5/3 = 21/3 = 7. Correct.