how many solutions does this linear system have ? y=5x-1 -15x-3y=3

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mikayla2017 mikayla2017

18-07-2016
Mathematics

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how many solutions does this linear system have ? y=5x-1 -15x-3y=3

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Panoyin Panoyin · Answer 1 · 2016-07-18T16:27:07+02:00

  y = 5x - 1
-15x - 3y = 3

-15x - 3y = 3
-15x - 3(5x - 1) = 3
-15x - 3(5x) + 3(1) = 3
-15x - 15x + 3 = 3
  -30x + 3 = 3
- 3 - 3
-30x = 0
-30   -30
x = 0

y = 5x - 1
y = 5(0) - 1
y = 0 - 1
y = -1
(x, y) = (0, -1)

This linear system has one solution.

neonhatchet14 neonhatchet14 · Answer 2 · 2019-06-27T19:47:38+02:00

neonhatchet14 neonhatchet14

27-06-2019

Answer:

the answer is A if its for e2020 or the option for

one solution: (0,-1)

Step-by-step explanation:

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