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3 years ago

What are the first and second steps performed in solving the inequality 2(4w + 8) – 2w + 42 > 78? Name the property used.

1 answer:

6 0

Hello :
<span>2(4w + 8) – 2w + 42 > 78
8w+16-2w+42 </span>> 78......(<span>distributivity × for + )
6w </span>> 20
w > 20/6

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3 years ago

(5n2 – 4nm - 9m²) + (7n2 + 4nm +8m²) =

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Answer:

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Given the expression

$\left(5n^2\:-\:4nm\:-\:9m^2\right)\:+\:\left(7n^2\:+\:4nm\:+8m^2\right)$

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Add similar elements: $-9m^2+8m^2=-m^2$

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3 years ago

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Answer:

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Combine like terms.

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Expand brackets.

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