3x - 4y = -30
3x + 2y = 6
A. (-2, 8)
B. (0, 3)
C. (0, 4)
D. (-2, 6)
3x + 2y = 6
A. (-2, 8)
B. (0, 3)
C. (0, 4)
D. (-2, 6)
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Subtract the first equation from the second
6y = 36, so y = 6
3x + 12 = 6, 3x = -6, x = -2
(-2, 6) ☜
6y = 36, so y = 6
3x + 12 = 6, 3x = -6, x = -2
(-2, 6) ☜
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Subtract the second from the first to get - 6y = -36, so y = 6 and therefore x = - 2
Answer D.
Answer D.
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D
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D