an equation is shown below: 5 ( 2x – 8 ) + 15 = -15 write the steps you’ll use to solve the equation and explain each step.​

Question

an equation is shown below:
5 ( 2x – 8 ) + 15 = -15
write the steps you’ll use to solve the equation and explain each step.​

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Dâu 5 years 2021-08-27T07:25:21+00:00 2 Answers 31 views 0

Answers ( )

  1. huyenthanh
    0
    2021-08-27T07:26:54+00:00
    Reply

    Answer:

    x = 1

    Step-by-step explanation:

    Skills needed: One-Variable Equations, Solving Equations

    1) The first thing is to use P.E.M.D.A.S

    There are no Parentheses, or Exponents, so we go to multiplication

    The quantity we multiply is: 5(2x-8)

    Using distributive property (which is a(b+c) = ab+ac), you get:

    5(2x-8) = 5(2x) - 5(8) = 10x - 40

    2) Now, we substitute back in and combine like terms:

    10x-40+15=-15

    Combine the -40 and 15 (-40+15=-25)

    Then, you will get: (10x-25=-15)

    3) Add 25 to both sides, to isolate the variable:

    10x = -15+25, and then -15+25 is 10, so

    10x = 10

    4) Divide by 10 on both sides, and get x = 1

    Hope this helps and have a nice day!! 🙂 :]

  2. Helga
    0
    2021-08-27T07:27:06+00:00
    Reply

    Answer: x = 1

    Step-by-step explanation:

    5 ( 2x – 8 ) + 15 = -15 (write the equation)

    5 ( 2x – 8 ) = -30 (subtract by 15 on both sides)

    2x – 8 = -6 (divide by 5 on both sides)

    2x = 2 (add 8 to both sides)

    x = 1 (divide by 2 on both sides)

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