Question

Solve by Cramer's rule
(1) x+y+z = 3
2x-y+3z= 4
x+2y-z = 2

(2) x+2y= 3
2x+5y=5
​

Answer 1

Step-by-step explanation:

$yx \frac{0 \sqrt[ \sqrt{ \sqrt[ \frac{ \cos( \alpha \cot( ln(ee \alpha ) ) ) }{?} ]{?} \times \frac{?}{?} } ]{?} }{?} \times \frac{?}{?} \times \frac{?}{?}$