Question

Solve each system by elimination. −5x − 10y = 15 −3x + 10y = 25

Answer 1

Answer:

$\boxed{x = -5~~and~~ y =1}$

Step-by-step explanation:

-5x - 10y = 15

-3x + 10y = 25 +

-8x = 40

$x = \frac{40}{-8}$

x = -5

.

Substitute the value of x to one of equations

-5(-5) - 10y = 15

25 - 10y = 15

-10y = 15 - 25

-10y = -10

$y = \frac{-10}{-10}$

y = 1

Answer 2

Answer:

x = -5 and y = 1

Step-by-step explanation:

use elimination