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9 November, 19:03

Will the solution of an equation such as x-3=9 be a variable on a number? Explain

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  1. 9 November, 19:14
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    X = 12

    Add three on both sides to get rid of it

    9+3 and - 3 + 3 the three is negative because you drop the minus sign down

    This cancels out the three and 9+3 is 12 so X=12
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