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-(-4.2w-7x-5.4)an equivalent expression by distributing the "-" sign outside the parentheses

-(-4.2w-7x-5.4)an equivalent expression by distributing the "-" sign outside-example-1

1 Answer

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(4.2w+7x+5.4)

1) Distributing the minus, is the same as distributing "-1". So we can write:


\begin{gathered} -(-4.2w-7x-5.4)\text{ =-1}(-4.2w-7x-5.4) \\ \end{gathered}

2) A -1, swaps the sign of all terms within the parentheses:


(4.2w+7x+5.4)

3) Hence this is the answer (above).

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