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Gekata [30.6K]
3 years ago
6

Solve:

Mathematics
1 answer:
zzz [600]3 years ago
8 0

Answer: c

This system has infinitely many solutions.

Step-by-step explanation:

Solve by substitution:

1) Solve y=2x-1 for y:

y=2x-1

2) Substitute 2x-1 for y in 2x-y-1=0:

2x-y-1=0

2x-(2x-1)-1=0

3) Simplify both sides of the equation:

0=0

Therefore, This system has infinitely many solutions.

Solve by elimination:

You can't solve this system of equations by elimination.

Solve by graphing:

The lines are directly on top of each other, Therefore there are infinitely many solutions.

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