‐4x+7y=‐13 -2x+8y=‐2 Solve the system of equation

Question

‐4x+7y=‐13
-2x+8y=‐2
Solve the system of equation

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Vodka 3 years 2021-07-26T13:43:43+00:00 2 Answers 12 views 0

Answers ( )

  1. MichaelMet
    0
    2021-07-26T13:44:44+00:00
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    Answer: Solve for the first variable in one of the equations, then substitute the result into the other equation.

    Point Form: (5,1)

    Equation Form: x=5,y=1

  2. kiet
    0
    2021-07-26T13:45:03+00:00
    Reply

    Answer:

    (5,1)

    Step-by-step explanation:

    4x + 7•(x /4-1/4) = -13

       -9x/4 = -45/4

       -9x = -45

    Solve equation for the variable  x

     9x = 45

      x = 5

    By now we know this much :

    x = 5

       y = x/4-1/4

    Use the  x  value to solve for  y

       y = (/4)(5)-1/4 = 1

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )