# What are x and y if 10x+6y=0 and -7x+2y=31?

May 9, 2018

color(crimson)(x = -3, y = 5

#### Explanation:

$10 x + 6 y = 0 , \text{ Eqn (1)}$

$- 7 x + 2 y = 31 , \text{ Eqn (2)}$

21x - 6y = -93, color(maroon)(" Eqn (3) = -3 * Eqn (2)"

$31 x = - 93$
color(crimson)(x = -3
$21 + 2 y = 31$
2y = 31-21 = 10, color(crimson)(y = 5