# How do you solve 3x+5y=7 and 2x-y=9?

Oct 5, 2017

$x = 4$ & $y = - 1$

#### Explanation:

$3 x + 5 y = 7$ Eqn (1)
$2 x - y = 9$ Eqn (2)
Multiply Eqn (2) by 5
$10 x - 5 y = 45$ Eqn (3)

$13 x = 52$ or $x = 4$
$8 - y = - 9$ or $y = - 1$