You can use the substitution method. Using the first equation in terms of y, y = 5 - x Substitute this to the second equation to get the value of x. x - 2(5 - x) = 2 x - 10 + 2x = 2 3x = 2 + 10 3x = 12 x = 4
For y, just substitute the value of x that we have used in the first equation. y = 5 - 4 = 1