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2 April, 00:11

Solve the equation 3x + (8x+15) = 180 to find the value of x

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Answers (2)
  1. 2 April, 00:17
    0
    Answer: x=15

    Step-by-step explanation:

    Open the bracket

    3x+8*+15=180

    3*+8*=180-15

    11*=165

    *=165/11

    *=15
  2. 2 April, 00:18
    0
    x=15

    Step-by-step explanation:

    Simplifying

    3x + (8x + 15) = 180

    Reorder the terms:

    3x + (15 + 8x) = 180

    Remove parenthesis around (15 + 8x)

    3x + 15 + 8x = 180

    Reorder the terms:

    15 + 3x + 8x = 180

    Combine like terms: 3x + 8x = 11x

    15 + 11x = 180

    Solving

    15 + 11x = 180

    Solving for variable 'x'.

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

    Add '-15' to each side of the equation.

    15 + - 15 + 11x = 180 + - 15

    Combine like terms: 15 + - 15 = 0

    0 + 11x = 180 + - 15

    11x = 180 + - 15

    Combine like terms: 180 + - 15 = 165

    11x = 165

    Divide each side by '11'.

    x = 15

    Simplifying

    x = 15
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