Question

Решите систему уравнения

Answer 1

$left{begin{array}{ccc}2x&-3y&-z=-6\3x&+4y&+3z=-5\x&+y&+z=-2end{array}right ; left{begin{array}{ccc}x&+y&+z=-2\&-5y&-3z=-2\&y&=1end{array}right \\\ left{begin{array}{ccc}x&+y&+z=-2\&5y&=1\&&-3z=3end{array}right ; left{begin{array}{c}x=-1\y=1\z=-2end{array}right$