Which ordered pair is the solution to the following system? y = x – 2 and 4x + y = 23

Question

Which ordered pair is the solution to the following system? y = x – 2 and 4x + y = 23

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Cherry 1 day 2021-07-21T05:04:30+00:00 1 Answers 0 views 0

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    2021-07-21T05:05:48+00:00

    Answer:

    x=5, y=3

    Step-by-step explanation:

    y=x−2;4x+y=23

    Step: Solve y=x−2 for y:

    Step: Substitute x−2 for y in 4x+y=23:

    4x+y=23

    4x+x−2=23

    5x−2=23(Simplify both sides of the equation)

    5x−2+2=23+2(Add 2 to both sides)

    5x=25

    5x/5 = 25/5(Divide both sides by 5)

    x=5

    Step: Substitute 5 for x in y=x−2:

    y=x−2

    y=5−2

    y=3(Simplify both sides of the equation)

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