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7 November, 17:20

How do you check 2x+5-3 (2x-7) = 2 (3x-5) - 4

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  1. 7 November, 19:42
    0
    Mplifying

    2x + 5 + - 3 (2x + - 7) = 2 (3x + - 5) + - 4

    Reorder the terms:

    2x + 5 + - 3 (-7 + 2x) = 2 (3x + - 5) + - 4

    2x + 5 + (-7 * - 3 + 2x * - 3) = 2 (3x + - 5) + - 4

    2x + 5 + (21 + - 6x) = 2 (3x + - 5) + - 4

    Reorder the terms:

    5 + 21 + 2x + - 6x = 2 (3x + - 5) + - 4

    Combine like terms: 5 + 21 = 26

    26 + 2x + - 6x = 2 (3x + - 5) + - 4

    Combine like terms: 2x + - 6x = - 4x

    26 + - 4x = 2 (3x + - 5) + - 4

    Reorder the terms:

    26 + - 4x = 2 (-5 + 3x) + - 4

    26 + - 4x = (-5 * 2 + 3x * 2) + - 4

    26 + - 4x = (-10 + 6x) + - 4

    Reorder the terms:

    26 + - 4x = - 10 + - 4 + 6x

    Combine like terms: - 10 + - 4 = - 14

    26 + - 4x = - 14 + 6x

    Solving

    26 + - 4x = - 14 + 6x

    Solving for variable 'x'.

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

    Add '-6x' to each side of the equation.

    26 + - 4x + - 6x = - 14 + 6x + - 6x

    Combine like terms: - 4x + - 6x = - 10x

    26 + - 10x = - 14 + 6x + - 6x

    Combine like terms: 6x + - 6x = 0

    26 + - 10x = - 14 + 0

    26 + - 10x = - 14

    Add '-26' to each side of the equation.

    26 + - 26 + - 10x = - 14 + - 26

    Combine like terms: 26 + - 26 = 0

    0 + - 10x = - 14 + - 26

    -10x = - 14 + - 26

    Combine like terms: - 14 + - 26 = - 40

    -10x = - 40

    Divide each side by '-10'.

    x = 4

    Simplifying

    x = 4
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