Mathematics, 23.02.2021 02:10 Nowellkwaku
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A system of equations and its solution are given below.
System A
- y = 7
-3x + 9y = -39
Solution: (4,-3)
Complete the sentences to explain what steps were followed to obtain the system of equations below.
System B
x - y = 7
To get system B, the first 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.
Answers: 1
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