Question

(3x+8y=-20
-5x + y = 19

Answer 1

Explanation:

(3 x + 8 y = - 20) * 1

(-5 x + y = 19) * 8

3 x + 8 y = - 20

-40 x + 8y = 162

Subtract ;

43 x = - 182

x = 4.23

3x + 8y = - 20

12.69 + 8y = - 20

8y = -32.69

y = 4.08