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16 May, 23:50

Find m

(-3x + 20)

(-2x + 55)

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Answers (1)
  1. 17 May, 01:35
    0
    Answer: Solution for (-3x+20) + (-2x+55) = 180 equation: x = - 21

    Step-by-step explanation:

    Simplifying

    (-3x + 20) + (-2x + 55) = 180

    Reorder the terms:

    (20 + - 3x) + (-2x + 55) = 180

    Remove parenthesis around (20 + - 3x)

    20 + - 3x + (-2x + 55) = 180

    Reorder the terms:

    20 + - 3x + (55 + - 2x) = 180

    Remove parenthesis around (55 + - 2x)

    20 + - 3x + 55 + - 2x = 180

    Reorder the terms:

    20 + 55 + - 3x + - 2x = 180

    Combine like terms: 20 + 55 = 75

    75 + - 3x + - 2x = 180

    Combine like terms: - 3x + - 2x = - 5x

    75 + - 5x = 180

    Solving

    75 + - 5x = 180

    Solving for variable 'x'.

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

    Add '-75' to each side of the equation.

    75 + - 75 + - 5x = 180 + - 75

    Combine like terms: 75 + - 75 = 0

    0 + - 5x = 180 + - 75

    -5x = 180 + - 75

    Combine like terms: 180 + - 75 = 105

    -5x = 105

    Divide each side by '-5'.

    x = - 21

    Simplifying

    x = - 21
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