Find a solution to the following system of equations. –5x + y = –5 –4x + 2y = 2

A. (0, 1)

B. (–8, –15)

C. (2, 5)

D. (–2, –15)

Respuesta :

-5x + y = -5.....multiply by -2
-4x + 2y = 2
---------------
10x - 2y = 10 (result of multiplying by -2)
-4x + 2y = 2
-----------------add
6x = 12
x = 12/6
x = 2

-5x + y = -5
-5(2) + y = -5
-10 + y = -5
y = -5 + 10
y = 5

solution is (2,5)