Cramer's rule notes.docx - Wikispaces by huanghengdong

VIEWS: 8 PAGES: 1

									Notes for Cramer’s Rule (Solving a System of equations in two variables)


Cramer’s Rule formula; linear equations must be in standard form, before using
Cramer’s rule.
ax + by = e
cx + dy = f
Sample problem is below:




a=2
b = -1
 c=5
d=2
e = 20
f = 14

ax + by = e
cx + dy = f


x=               =                                      =6




y=               =




Solution is x = 6, y = -8

								
To top