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Maths-

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Easy

Question

The values of $x comma y comma z$ in order of the system of equations $3 x plus y plus 2 z equals 3 comma$ $2 x minus 3 y minus z equals negative 3$ , $x plus 2 y plus z equals 4 comma$ are

2, 1, 5
1, 1, 1
1, –2, –1
1, 2, –1

The correct answer is: 1, 2, –1

Put the value $left parenthesis x comma y comma z right parenthesis equals left parenthesis 12 comma negative 1 right parenthesis comma$ which satisfies the equation. Hence, (d) is correct.

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