Question

--8x + 10y = 16
-4x - 5y = 13

Answer 1

Step-by-step explanation:

please refer to the attachment

Answer 2

Substitution Method

{ -8x+10y=16
{ 4x-5y=13

{ -8x+10y=16
{ x=13/4+5/4y

-8(13/4+5/4y)+10y=16

No solution

——

Elimination Method

{ -8x+10y=16
{ 4x-5y=13

{ -4x+5y=8
{ 4x-5y=13

0=21

Still, there is no solution.