Question

What is the solution set of the given system?

2x - y - 4 = 0
3x + y - 9 = 0

Choices;{(6/5, 13/5)}
{(13/5, 6/5)}
{(5, 6)}
{(6, 5)}

Answer 1

B {(13/5.6/5)}

Answer 2

there are two equations, two unknowns in this problem, hence using the degrees of freedom, this problem can be solved.

2x - y - 4 = 0
3x + y - 9 = 0
5x -13 = 0
x = 13/5
y = 6/5

The answer is choice B{(13/5, 6/5)}