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17 January, 01:22

Jade wants to verify that the expression 5 (3x - 6) is equivalent to 15x - 30. she substitutes 2 into each expression and evaluates each one. how will she know if 5 (3x - 6) is equivalent to 15x - 30?

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  1. 17 January, 01:48
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    At first, weIf assumed that the two expressions are equal and then we can write the following and solve for x

    5 (3x-6) = 15x-30

    Then perform transposition method such as shown below

    15x-30=15x-30

    15x-15x=-30+30

    0=0

    They are equal since the derived values on both sides is the same which is zero.
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