x= 5y + 7 2x + 4y = 0 Solve for substitution

Question

x= 5y + 7
2x + 4y = 0
Solve for substitution

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Nho 4 years 2021-08-10T10:19:25+00:00 2 Answers 14 views 0

Answers ( )

  1. Orla
    0
    2021-08-10T10:20:25+00:00
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    Answer:

    x=2 and y= -1

    Step-by-step explanation:

    substitute x value in equation 2

    2(5y+7)+4y=0

    10y+14+4y=0

    14y = -14

    y= -1

    here,

    x= 5(-1)+7

    x= -5+7

    x=2

  2. giabao
    0
    2021-08-10T10:21:05+00:00
    Reply

    Point slope form: (2,-1)
    Equation form: x=2 , y=-1

    Solve for the first variable in one of the equations then substitute the result into the other equation.

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