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savag3jitt
13.10.2019 •
Mathematics
What is the solution to this system of linear equations? y − x = 6 y x = −10 a (−2, −8) b (−8, −2) c (6, −10) d (−10, 6)
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Ответ:
y - x = 6 ... y = 6 + x
y + x = - 10
y + x = - 10
6 + x + x = - 10
6 + 2x = - 10
2x = - 10 - 6
2x = - 16
x = - 8
y = 6 + x = 6 - 8 = - 2
(x, y) = (-8, -2)
The correct result would be: b (−8, −2).
Ответ:
Page 1: D
Page 2: A
Page 3: D
dad lol