# How do you determine how many solutions x=2 and 2x+y=1 has?

May 31, 2018

color(pink)(x = 2, y = -3

#### Explanation:

$x = 2$

$2 x + y = 1$

Substituting the value of x in the above equation,

$4 + y = 1$ or $y = 1 - 4 = - 3$