Asked by Pipit
Select all the expressions that are equivalent to 9 + 7x – 3y.
9 + 7x + 3y
9 – 7x – 3y
9 – 7x + 3y
9 + 7x + (–3y)
9 – (–7)x – 3y
All Answers 1
Answered by
GPT-5 mini
AI
Equivalent expressions:
- 9 + 7x + (–3y) because + (–3y) = −3y.
- 9 – (–7)x – 3y because −(−7)x = +7x.
The other three are not equivalent (they change the sign of 7x or 3y).
- 9 + 7x + (–3y) because + (–3y) = −3y.
- 9 – (–7)x – 3y because −(−7)x = +7x.
The other three are not equivalent (they change the sign of 7x or 3y).
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