# How do you solve the system x=3 and 2y + x =3?

Dec 26, 2015

You can substitute (=replace) the value of $x$ in the other equation

#### Explanation:

$2 y + x = 3 \to 2 y + 3 = 3$

Now substract $3$ on both sides:
$2 y = 0 \to y = 0$

Complete answer: $x = 3 \mathmr{and} y = 0$