Answer:
His error occurred in the last step
Explanation:
He was supposed to calculate -

which would equal -

Because he added instead of subtracted.
Hope this helps!
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Answer is C how many pizzas are needed for 25 people
Answer:
1
Step-by-step explanation:
Answer:
x = 2
Step-by-step explanation:
5 - x = 7 - 2x
-x + 2x = 7 - 5
x = 2
Answer:
7 mg, 7 centigrams, 7g, 7kg