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10 July, 04:43

Paco says that the solution 2over5x - 1 = 9 is x = 4 Do you agree? Explain

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  1. 10 July, 08:10
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    Paco is not correct.

    Step-by-step explanation:

    This is the Equation ... 2/5x-1=9

    If Paco is true, you can substitute x=4 into the equation.

    If x = 4, [2 / (5*4) ]-1=9

    Simplifying this would make it 2/20-1=9

    which equals - 9/10=9.

    But we know that - 9/10 does not equal 9.

    Therefor, Paco's "answer", which is x=4, is not correct.
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