Question 10.4.5: Using Cramer’s Rule Use Cramer’s Rule to solve the system of...
Using Cramer’s Rule
Use Cramer’s Rule to solve the system of equations.
\left\{\begin{array}{r}7 x+y+z-1=0 \\5 x+3 z-2 y=4 \\4 x-z+3 y=0\end{array}\right.
STUDY TIP
When you apply Cramer’s Rule, make sure that all linear equations are written in the form
ax + by + cz = k.
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