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14 January, 11:47

What is the answer of this equation? 10x-6 (2x+5) = 20

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  1. 14 January, 15:35
    0
    Simplifying

    x = - 25

    Step-by-step explanation:

    Reorder the terms:

    10x + - 6 (5 + 2x) = 20

    10x + (5 * - 6 + 2x * - 6) = 20

    10x + (-30 + - 12x) = 20

    Reorder the terms:

    -30 + 10x + - 12x = 20

    Combine like terms: 10x + - 12x = - 2x

    -30 + - 2x = 20

    Solving

    -30 + - 2x = 20

    Solving for variable 'x'.

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

    Add '30' to each side of the equation.

    -30 + 30 + - 2x = 20 + 30

    Combine like terms: - 30 + 30 = 0

    0 + - 2x = 20 + 30

    -2x = 20 + 30

    Combine like terms: 20 + 30 = 50

    -2x = 50

    Divide each side by '-2'.

    x = - 25
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