Equation 1) 2x + y = 11
Equation 2) x - 2y = 13
Multiply all of equation 1 by 2.
1) 2(2x + y = 11)
Simplify.
1) 4x + 2y = 22
2) x - 2y = 13
Add equations with one another.
5x = 35
Divide both sides by 5.
x = 35/5
Simplify.
x = 7
Plug in 7 for x in the first equation.
2x + y = 11
2(7) + y = 11
Simplify.
14 + y = 11
Subtract 14 from both sides.
y = 11 - 14
Simplify.
y = -3
So, x = 7 and y = -3
(7, -3)
~Hope I helped!~