20 POINTS IF YOU SOLVE!
QUESTION 1
Solve by the linear combination method.
8x + 2y = 4
–4x + 3y = –10
(1, 3)
(2, 3)
(1, 2)
(1, –2)
QUESTION 2
Solve by the linear combination method.
2x + 3y = –17
5x + 2y = –4
(3, –1)
(–2, 2)
(–1, 3)
(2, –7)
QUESTION 3
Solve by the linear combination method.
3x – 5y = 7
2x + 3y = 30
(3, –7)
(3, 7)
(9, 4)
(–3, –7)
QUESTION 4
Solve by the linear combination method.
x + y = 50
0.05x + 0.06y = 2.8
(20, 30)
(40, 60)
(10, 30)
(20, –50)
QUESTION 5
Solve by the linear combination method.
6x – 2y = 2
–3x + 4y = 5
(1, 3)
(1, –2)
(2, 3)
(1, 2)