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5 September, 21:31

How many solutions does this linear system have?

y=-6x+2

-12x - 2y = - 4

A) one solution: (0,0)

B) one solution: (1,-4)

C) no solution

D) infinite number of solutions

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Answers (2)
  1. 5 September, 22:37
    0
    B - one solution: (1,-4)

    Step-by-step explanation:

    (1,-4)

    y = - 6x + 2

    -4 = - 6 (1) + 2

    -4 = -4

    (1,-4)

    -12x - 2y = - 4

    -12 (1) - 2 (-4) = - 4

    -12 + 8 = -4

    -4 = - 4

    if you put the value x and y into both equation you can find the solution
  2. 5 September, 22:57
    0
    Hi there!

    The correct answer is: D. Infinite number of solutions

    Step-by-step explanation:

    in this case you can use the substitution method to solve these linear equations

    since y = - 6x + 2 you can plug this into the equation - 12x - 2y = - 4

    -12x - 2 (-6x + 2) = - 4 this comes out to be - 12x + 12x - 4 = - 4

    then you simplify down to 0x=0
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