Answer the following problem.
A) all the 3 clubs.
B) Math or the English club.
C) any of three clubs.
D) Science club only.
E) Math and Science club but not english club.
Answer:
15. why would it be appropriate to solve the following linear system by substitution?
A. because they are both written in standard form
B. because one of the equations is already solved in terms of the other variable
C because one of the variables can be solved immediately by adding
D. because the value of the variable y is 4
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