SOLUTION: please I need help on this how to solve this i'm stuck the question read as follow :use cramer's rule to solve for y only if given the simultaneous question root 2+y+z=3

Algebra ->  Matrices-and-determiminant -> SOLUTION: please I need help on this how to solve this i'm stuck the question read as follow :use cramer's rule to solve for y only if given the simultaneous question root 2+y+z=3       Log On


   

Question 948197: please I need help on this how to solve this i'm stuck the question read as follow :use cramer's rule to solve for y only if given the simultaneous question root 2+y+z=3
x - z+y=1
x+root2x=root2
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
y%2Bz=1
x%2By-z=1
%281%2Bsqrt%282%29%29x=sqrt%282%29
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A=%28matrix%283%2C3%2C0%2C1%2C1%2C1%2C1%2C-1%2C%281%2Bsqrt%282%29%29%2C0%2C0%29%29
abs%28A%29=-%282%2B2%2Asqrt%282%29%29
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A%5Bx%5D=%28matrix%283%2C3%2C1%2C1%2C1%2C1%2C1%2C-1%2Csqrt%282%29%2C0%2C0%29%29
abs%28A%5Bx%5D%29=-2sqrt%282%29
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abs%28A%5By%5D%29=-%282%2Bsqrt%282%29%29
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abs%28A%5Bz%5D%29=-sqrt%282%29
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