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9. On Johnny math test, he was asked to re-write the expression –3(x + 10) by using the distributive property. Below is Johnny’s answe
Question
9. On Johnny math test, he was asked to re-write the expression –3(x + 10) by using the distributive
property. Below is Johnny’s answer. Is his answer correct? Explain.
Original Expression:
-3(x + 10)
Johnny’s answer: 3x – 30
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Mathematics
5 years
2021-08-18T21:03:03+00:00
2021-08-18T21:03:03+00:00 1 Answers
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Answers ( )
Answer:
No, he is incorrect because he forgot to multiple the negative by the x, and only multiplied 3 by x instead of -3 by x.
Step-by-step explanation:
The correct re-write of this expression is:
-3x – 30