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26 November, 12:19

Solve for x 2 (x+9) = x+21

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  1. 26 November, 12:42
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    Answer: x = 3

    Step-by-step explanation:

    Step 1: Simplify both sides of the equation.

    2 (x+9) = x+21

    (2) (x) + (2) (9) = x+21 (Distribute)

    2x+18=x+21

    Step 2: Subtract x from both sides.

    2x+18-x=x+21-x

    x+18=21

    Step 3: Subtract 18 from both sides.

    x+18-18=21-18

    x=3
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