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5 July, 20:49

Simplify the equation - 3 (5-7x)

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  1. 5 July, 22:48
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    The answer is 21x - 15.

    To solve, distribute the - 3 to the numbers in the parentheses.

    -3 (5 - 7x)

    -15 + 21x (Multiplying two negatives makes a positive)

    21x - 15 (Commutative Property allows you to switch the numbers around)
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