SOLUTION: i don't have any idea in solving this elimination method. Can you help me? Please
3x+5y-2z=7
5x+4y+5z=-13
3x-2y+4z=-3
Please help me.
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Question 849834: i don't have any idea in solving this elimination method. Can you help me? Please
3x+5y-2z=7
5x+4y+5z=-13
3x-2y+4z=-3
Please help me.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
1.
2.
3.
Subtract eq. 3 from eq. 1,
4.
Multiply eq. 1 by 5 and eq. 2 by -3 and add them,
5.
Now x is elmininated.
Multiply eq. 4 by 13 and eq. 5 by (-7) and add them,
Now back substitute to find
and finally,
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