SOLUTION: In which line is the first mistake made when solving this equation?
2x + y - 2z = 23
3x + 2y + z = 11
x - y + z = -2
Line 1: z = 11 + 3x + 2y
Line 2: 2x + y - 2(1
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-> SOLUTION: In which line is the first mistake made when solving this equation?
2x + y - 2z = 23
3x + 2y + z = 11
x - y + z = -2
Line 1: z = 11 + 3x + 2y
Line 2: 2x + y - 2(1
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Question 1025138: In which line is the first mistake made when solving this equation?
2x + y - 2z = 23
3x + 2y + z = 11
x - y + z = -2
Line 1: z = 11 + 3x + 2y
Line 2: 2x + y - 2(11 + 3x + 2y) = 23
Line 3: -4x - 3y = 45
Line 4: x - y + (11 + 3x + 2y) = - 2
Line 5: 4x + y = - 13
Line 6: -2y = 32
Line 7: y = 16, x = ¾, z = -11/4 Answer by ikleyn(52750) (Show Source):
