Need MATH help ASAP!

1. Solve by the linear combination method (with or without multiplication).
4x – 5y = –18
3x + 2y = –2

A .(3, –1)
B, (–2, 2)
C. (–2, 7)
D. (–1, 3)

2. Solve by the linear combination method (with or without multiplication).
6x – 2y = 2
–3x + 4y = 5

A. (1, 3)
B. (2, 3)
C. (2, 3)
D. (1, –2)

3. Solve by the linear combination method (with or without multiplication).
4g + 5h = 4
8g – 10h = 4

A. (-3/4, -1/5)
B. (-3/4, 1/5)
C. (3/4, -1/5)
D. (3/4, 1/5)

4. Solve by the linear combination method (with or without multiplication).
x + y = 50
0.05x + 0.06y = 2.8

A. (20, 30)
B. (40, 60)
C. (10, 30)
D. (20, –50)

5. Solve by the linear combination method (with or without multiplication).
3x – 5y = 7
2x + 3y = 30

A. (9, 4)
B. (3, 7)
C. (–3, –7)
D. (3, –7)

1. B
2. check your answer choices, and make sure you typed the problem correct. Because i worked the problem, but i didn't get A, B, C or D.
3. D
4. A
5. A
:) I checked them and they're all correct!

You're welcome :) I love systems of equations, and i love helping people who don't understand them, even more!

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I would give answers but thats an awful lot, lol. Make one unknown the subject of the equation and then plug it into the second equation.

example: 3x+4y=15
2x+4y=10

4y=15-3x

therefore, 2x+(15-3x)=10
15-x=10
x=5