SOLUTION: I need help with the following question and I need to see the work to get the answer. Solve the system of equations x + y = 5 x - y = -9

Algebra ->  Systems-of-equations -> SOLUTION: I need help with the following question and I need to see the work to get the answer. Solve the system of equations x + y = 5 x - y = -9       Log On


   

Question 448068: I need help with the following question and I need to see the work to get the answer.
Solve the system of equations
x + y = 5
x - y = -9
Answer by sudhanshu_kmr(1152) About Me  (Show Source):
You can put this solution on YOUR website!

x + y = 5
x - y = -9
add both equations, y will cancel..

2x = -4
=> x = -4/2 = -2
now, put the value of x in first equation.
-2 + y = 5
=> y = 5+2 = 7
so, x = -2 , y = 7