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19 September, 23:00

9. Solve for x,

9x - 25

5x + 7

N

+3
Answers (1)
  1. 20 September, 01:57
    0
    x = 8

    Step-by-step explanation:

    Simplifying

    9x + - 25 = 5x + 7

    Reorder the terms:

    -25 + 9x = 5x + 7

    Reorder the terms:

    -25 + 9x = 7 + 5x

    Solving

    -25 + 9x = 7 + 5x

    Solving for variable 'x'.

    Move all terms containing x to the left, all other terms to the right.

    Add '-5x' to each side of the equation.

    -25 + 9x + - 5x = 7 + 5x + - 5x

    Combine like terms: 9x + - 5x = 4x

    -25 + 4x = 7 + 5x + - 5x

    Combine like terms: 5x + - 5x = 0

    -25 + 4x = 7 + 0

    -25 + 4x = 7

    Add '25' to each side of the equation.

    -25 + 25 + 4x = 7 + 25

    Combine like terms: - 25 + 25 = 0

    0 + 4x = 7 + 25

    4x = 7 + 25

    Combine like terms: 7 + 25 = 32

    4x = 32

    Divide each side by '4'.

    x = 8

    Simplifying

    x = 8
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