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Pretest: The Real Number System
15
Select the correct answer from each drop-down menu.
The given equation has been solved in the table.
Step
Statement
1
-7n + 11 = -10
2
-On + 11 - 11 = -10 – 11
3
= -21
- 7n
-? 쪽
-771
4
4
=
-21
-7
-21 꼭
5
n = 3
Use the table to complete each statement.
In step 2, the
property of equality was applied.

Acompany manufactures three types of cabinets. it makes 110 cabinets each week. in the first week, the sum of the number of type-1 cabinets and twice the number of type-2 cabinets produced was 10 more than the number of type-3 cabinets produced. the next week, the number of type-1 cabinets produced was three times more than in the first week, no type-2 cabinets were produced, and the number of type-3 cabinets produced was the same as in the previous week.