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22 May, 18:25

If 8x + 6 = 3x + 21,

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  1. 22 May, 20:50
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    x = 3

    Step-by-step explanation:

    First, subtract 3x from both sides. That leaves 5x+6=21.

    Next, subtract 6 from both sides. That leaves 5x=15.

    Lastly, divide by 5 and you get x=3
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