Y=x-7 Y=-4x-2 Solve by substitution help please

Question

Y=x-7
Y=-4x-2
Solve by substitution help please

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Lydia 2 weeks 2021-11-16T02:32:03+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-11-16T02:33:08+00:00

    Answer:

    (1, – 6 )

    Step-by-step explanation:

    Given the 2 equations

    y = x – 7 → (1)

    y = – 4x – 2 → (2)

    Substitute y = x – 7 into (2)

    x – 7 = – 4x – 2 ( add 4x to both sides )

    5x – 7 = – 2 ( add 7 to both sides )

    5x = 5 ( divide both sides by 5 )

    x = 1

    Substitute x = 1 into either of the 2 equations for corresponding value of y

    Substituting x = 1 into (1)

    y = 1 – 7 = – 6

    Solution is (1, – 6 )

    0
    2021-11-16T02:33:42+00:00

    Answer:

    6= 7-1

    -14= -4·3-2

    Step-by-step explanation:

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45:7+7-4:2-5:5*4+35:2 =? ( )