jaymar715
jaymar715
07-06-2018
Mathematics
contestada
Anybody know this answer? It’s mad hard
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choixongdong
choixongdong
07-06-2018
3x + y = -2 so y = -3x - 2
and
x - 2y = 4
substitute y = -3x - 2 into x - 2y = 4
x - 2y = 4
x - 2(-3x - 2) = 4
x + 6x + 4 = 4
7x = 0
x = 0
y = -3(0) - 2
y = -2
solution (0 , -2)
Answer
B. There is exactly one solution at (0, -2)
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LongBickStyle
LongBickStyle
07-06-2018
There is exactly one solution (0,-2)
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