Question

Y = 2x + 1
2x - y = 3

Answer 1

No solution

Explanation:

1) We will use the matrix method to solve this problem.

`\left[\begin{array}{ccc}-2&1&1\\2&-1&3\\\end{array}\right]`

2) Apply to Row2 : Row2 + Row1.

`\left[\begin{array}{ccc}-2&1&1\\0&0&4\\\end{array}\right]`

3) Since [0, 0, 4] is not true, this is an inconsistent system.

No solution