Question

Are the expressions 5+5+5+ X plus X plus X plus X and 4(5+x) equivalent? If so write another expression that is equivalent to both of them if not explain why not

Answer 1

• not equivalent
• 5+5+5 ≠ 4(5)

Explanation:

The expressions are not equivalent.

5+5+5+ X plus X plus X plus X is equivalent to 3·5 +4·X. There is no common factor of 4 that can be removed using the distributive property.

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