Solve this system of equations using the substitution method y=5x+4 x+12=y

Question

Solve this system of equations using the substitution method y=5x+4 x+12=y

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niczorrrr 4 years 2021-09-05T00:24:10+00:00 1 Answers 16 views 0

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  1. huyenthanh
    0
    2021-09-05T00:25:50+00:00
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    Answer:

    (2,14)

    Step-by-step explanation:

    Since y=5x+4, you can plug that into the other y in the other equation which would give you x+12=5x+4

    Now subtract 12 from both sides

    x=5x-8

    Subtract 5x from both sides

    -4x=-8

    Now you divide them both by -4 which gives you x=2

    Now plug x in to any of the equations

    y=5(2)+4

    y=10+4

    y=14

    Your final answer is (2,14)

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