Question 632105
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Hi,
x + 3y + 2z = –16
 2x – y + 2z = –15
 2x – 2y – z = 1
 D = 19, Dx= -57, Dy = -19, Dz = -95
 {{{x = -57/19= -3}}}, {{{ y =-19/19= -1}}},  {{{z = -95/19 =  -5}}}