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18 May, 01:05

Solve the equation 9x = 7 (x + 2).

A) - 7

B) - 1

C) 1

D) 7

+3
Answers (2)
  1. 18 May, 01:59
    0
    the answer is letter (D 7) try it and it was correct.
  2. 18 May, 04:00
    0
    The solution of the equation 9x=7 (x+2) is:

    Option D) 7

    Step-by-step explanation:

    9x=7 (x+2)

    Eliminating the parentheses applying distributive property:

    9x=7 (x) + 7 (2)

    Multiplying:

    9x=7x+14

    Grouping the x's on the left side of the equation: Subtracting 7x both sides of the equation:

    9x-7x=7x+14-7x

    Subtracting:

    2x=14

    Solving for x: Dividing both sides of the equation by 2:

    2x/2=14/2

    Dividing:

    x=7

    Solution: x=7 (option D)
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Home » Mathematics » Solve the equation 9x = 7 (x + 2). A) - 7 B) - 1 C) 1 D) 7
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