Question

How many solutions does this system have?

x + 2y – 3z = 4
- 2x – 4y + 62 = -8
3x + 6y - 92 = 12
O There is no solution.
• There are an infinite number of solutions.
O There is one solution.
O There are three solutions.

Answer 1

This system has three solutions (D).

Explanation for each of these problems are in the images below.