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21 October, 10:12

Tasha says that the expression 6.8w-4.7 can be simplified as 2.1w. Her teacher explains that this is not correct. What mistake did Tasha make

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  1. 21 October, 11:28
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    Answer: She combined unlike terms.

    Step-by-step explanation:

    You can only combine like terms. If a number has a variable, you must make sure that the number you're operating it with has the same variable raised to the same power (if applicable)

    6.8w-4.7 is in its simplest form.

    To be able to subtract these, 4.7 must have a ''w'' variable as follows;

    6.8w-4.7w=2.1w
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