You can put this solution on YOUR website! Please help me with this system of equations:
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2x-3y-z=4
4x+y+z=15
x-y-z=-2
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Rearrange:
x - y - z = -2
2x-3y - z = 4
4x+ y + z = 15
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Multiply 1st equation by 2 and subtract from 2nd equation
Multiply 1st equation by 4 and subtract from 3rd equation
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x - y - z = -2
0 - y + z = 8
0 + 5y +5z= 23
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Multiply 2nd equation by 5 and add to 3rd Equation
x - y - z = -2
0 - y + z = 8
0 + 0 + 10z = 63
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z = 6.3
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Substitute and solve for "y":
-y + 6.3 = 8
y = -1.7
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Substitute and solve for "x":
x -(-1.7) - (6.3) = -2
x + 1.7 = 4.3
x = 2.6
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Cheers,
Stan H.
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