Question

Solve the following system of equations. Please show your work.
x - y = 13
2x + y = 2

Answer 1

Add the equations together

You have
(x+2x)+(-y+y)=(13+2)

Solve this equation for x

Then go back to one of the equations given and plug that x in and solve for y

Answer 2

I don't understand

Answer 3

Adding part?

Answer 4

so than will result 3x=15
x=15/3
x=5

5-y=13
y=-8

x=5
y=-8