A system of equations and its solution are given below. System A
I - y = 7
-31 + 9y = -39
Solution: (4,-3)
Complete the sentences to explain what steps were followed to obtain the system of equations below.
System B
+1 = y = 7
by = -18
To get system B, the
equation in system A was replaced by the sum of that equation and
equation. The solution to system B
the same as the solution to system A.
times the

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.