SOLUTION: 2x + y = 4 x - y = 2

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: 2x + y = 4 x - y = 2      Log On


   

Question 24201: 2x + y = 4
x - y = 2
Answer by chripchrip(6) About Me  (Show Source):
You can put this solution on YOUR website!
add y to the both side of x-y=2
x-y+y=2+y
x=2+y
substitue the x to the 2x+y=4
2(2+y)+y =4
4+2y+y=4
3y=0
y=0
that x=2