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31 March, 20:20

ALPHA WHERE ARE YOU?

An equation is shown below:

7 (2x - 3) = 1

Which of the following correctly shows the first two steps to solve this equation?

Step 1: 9x - 7 = 1; Step 2: 9x = 8

Step 1: 9x + 4 = 1; Step 2: 9x = - 3

Step 1: 14x - 3 = 1; Step 2: 14x = 4

Step 1: 14x - 21 = 1; Step 2: 14x = 22

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Answers (2)
  1. 31 March, 20:22
    0
    The last option.

    Step-by-step explanation:

    When distributed, 7 times 2x becomes 14x and 7 times - 3 is - 21.

    Once you add - 21 to both sides, 14x is left alone on one side while 22 is on the other
  2. 31 March, 20:48
    0
    Step 1: 14x - 21 = 1; Step 2: 14x = 22

    Explanation:

    7 (2x-3) = 1

    Step 1: Simplify both sides of the equation

    7 (2x-3) = 1

    (7) (2x) + (7) (-3) = 1 (Distribute)

    14x+-21=1

    14x-21=1

    Step 2: Add 21 to both sides

    14x-21+21=1+21

    14x=22

    Step 3: Divide both sides by 14

    14x / 14 = 22 / 14

    x = 22 / 14: x = 11/7
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