Obtain an equivalent system by performing the stated elementary operation on the system.Multiply the second equation by -1. x - 5y + z = 35x - 2y - z = -18 3x + y + 2z = -18 x - 5y + z = -15
A. -x + 5y - z = -3
5x - 2y - z = -18
3x + y + 2z = -18
x - 5y + z = -15
B. x - 5y + z = 3
-5x + 2y + z = -18
3x + y + 2z = -18
x - 5y + z = -15
C. x - 5y + z = 3
-5x + 2y + z = 18
3x + y + 2z = -18
x - 5y + z = -15
D. x - 5y + z = 3
-5x - 2y - z = -18
3x + y + 2z = -18
x - 5y + z = -15
Answer: C
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