10
QuizMultiple Choice

Expanding Expressions — Quiz

Question 10 • Grade 7 Mathematics

Which pair shows equivalent expressions?

Answer
A
negative 2 x minus 10 is equal to negative 2 times open paren x plus 5 close paren
B
negative 2 times open paren x plus 5 close paren is equal to 2 x minus 10
C
2 x plus 10 is equal to negative 2 times open paren x minus 5 close paren
D
negative 2 times open paren x minus 5 close paren is equal to negative 2 x minus 10

Explanation

Distribute −2 across the parentheses in choice A: −2(x + 5) = −2x − 10. This matches the expression on the other side, so choice A shows equivalent expressions.

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