9514 1404 393
Answer:
(4) x = 15
Explanation:
Twice the second equation can be added to the first.
(x +2y) +2(x -y) = (37) +2(4)
3x = 45 . . . . . . . simplify
x = 15 . . . . . . . . . divide by 3
5.3m questions
6.9m answers