# How do you follow the system of equations 2x+y=1 and x--2y=-7 by graphing?

Jan 2, 2018

see below

#### Explanation:

The equations are

1.) $2 x + y = 1$
2.) $x - \left(- 2 y\right) = - 7$ that gives $x + 2 y = - 7$
put some values for $x$ in each equation to get corresponding values for $y$ in each equation

like in equation 1
let $x = 1$
$2 \left(1\right) + y = 1$
$y = 1 - 2$
$y = - 1$
similarly put another values for x and you will get corresponding values for y .