2. Then do the Extra Practice exercises below corresponding to
the sections that you had difficulty with in the Chapter Review. If you
cannot find your section, do a worksheet
instead.
If additional work is required after you complete these Extra
Practice exercises, then do the worksheets.
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3. Finally, (optional) read the links below to gain further insight on a
subject.
Systems of Equations in Two Variables
Matrices
Determinant
Cramer's Rule
