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3 August, 13:53

I need to completely simplify this expression and show all steps to the following: 3[5x-2 (x-4y) ]+6y

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  1. 3 August, 14:10
    0
    Simplifying 3[5x + - 2 (x + - 4y) ] + 6y = 0

    3[5x + (x * - 2 + - 4y * - 2) ] + 6y = 0

    3[5x + (-2x + 8y) ] + 6y = 0

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

    3[3x + 8y] + 6y = 0

    [3x * 3 + 8y * 3] + 6y = 0

    [9x + 24y] + 6y = 0

    Combine like terms: 24y + 6y = 30y

    9x + 30y = 0

    Solving 9x + 30y = 0

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

    Add '-30y' to each side of the equation.

    9x + 30y + - 30y = 0 + - 30y

    Combine like terms: 30y + - 30y = 0

    9x + 0 = 0 + - 30y

    9x = 0 + - 30y

    Remove the zero: 9x = - 30y

    Divide each side by '9'. x = - 3.333333333y

    Simplifying x = - 3.333333333y
  2. 3 August, 14:13
    0
    3[5x - 2 (x - 4y) ] + 6y

    3[5x - 2 (x) + 2 (4y) ] + 6y

    3[ (5x - 2x + 8y) ] + 6y

    3[ (3x + 8y) ] + 6y

    3[ (3x) ] + 3[ (8y) ] + 6y

    9x + 24y + 6y

    9x + 30y
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