Solve 3x−5 = 9. (3 points) Question 3 options: 1) x = −3 2) x = 2 3) x = 7 4) x = 8

Question

Solve 3x−5 = 9. (3 points) Question 3 options: 1) x = −3 2) x = 2 3) x = 7 4) x = 8

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Gia Bảo 4 years 2021-07-19T14:44:06+00:00 2 Answers 47 views 0

Answers ( )

  1. trucchi
    0
    2021-07-19T14:45:31+00:00
    Reply

    Answer:

    x = 14/3

    General Formulas and Concepts:

    Pre-Algebra

    Order of Operations: BPEMDAS

    1. Brackets
    2. Parenthesis
    3. Exponents
    4. Multiplication
    5. Division
    6. Addition
    7. Subtraction
    • Left to Right

    Equality Properties

    Step-by-step explanation:

    Step 1: Define equation

    3x – 5 = 9

    Step 2: Solve for x

    1. Add 5 to both sides:                    3x = 14
    2. Divide 3 on both sides:                x = 14/3

    Step 3: Check

    Plug in x into the original equation to verify it’s a solution.

    1. Substitute in x:                    3(14/3) – 5 = 9
    2. Multiply:                               14 – 5 = 9
    3. Subtract:                              9 = 9

    Here we see that 9 does indeed equal 9.

    ∴ x = 14/3 is a solution of the equation.

  2. Latifah
    0
    2021-07-19T14:45:53+00:00
    Reply

    Answer:

    x=7

    Step-by-step explanation:

    the other answer here is technically right but i know what you mean because i took the test and you forgot the ^ between 3 and x-5

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