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28 February, 12:02

15x+6=10x+21 solve for x

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  1. 28 February, 15:08
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    The answer would be x = 3.

    15x = 10x + 21 - 6 (Subtract 6 from both sides)

    15x = 10x + 15 (Simplify 10x + 21 - 6 to 10x + 15)

    15x - 10x = 15 (Subtract 10x from both sides)

    5x = 15 (Simplify 15x - 10x to 5x)

    x = 15/5 (Divide both sides by 5)

    x = 3 (Simplify 15/5 to 3).
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