moss3874 moss3874
  • 24-01-2024
  • Mathematics
contestada

A variable needs to be eliminated to solve the system of equations below. Choose the correct first
step.
Answer
-9x + y = 71
-x-y=-1

A. Add to eliminate y.
B. Subtract to eliminate y.
C. Subtract to eliminate x.
D. Add to eliminate x.

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