Solve this system of equations

{2x + y = 11

{5x - y = 10

solution: (3, 5)

Step-by-step explanation:

Solve this system of equations

{2x + y = 11

{5x - y = 10

add the equations to use elimination method.

2x + 5x + y - y = 11 + 10;

7x = 21

x = 21/7 = 3

x = 3

y = 11 - 2x = 11 - 2*3 = 11 - 6 = 5