find x given the function f(x)=4x-7 where f(x)=9

Question

find x given the function f(x)=4x-7 where f(x)=9

in progress 0
Verity 3 years 2021-08-16T22:06:49+00:00 2 Answers 11 views 0

Answers ( )

  1. Euphemia
    0
    2021-08-16T22:08:21+00:00
    Reply

    Answer:

    4

    Step-by-step explanation:

    You set f(x) = 9 and solve from there.

    9 = 4x – 7

    +7         +7

    16 = 4x

    /4     /4

    x = 4

  2. Neala
    0
    2021-08-16T22:08:46+00:00
    Reply

    Answer:

    The answer is 4

    Step-by-step explanation:

    f(x)=4x-7

    f(x)=9

    9=4x-7

    9+7=4x-7+7

    (the -7 and the +7 cancel out, and remember: whatever you do the one side you have to do to the other)

    16=4x

    (divide by 4 to isolate x and do the same to the other side of the equation so you get the answer)

    so, x=4

Leave an answer

Browse

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