SOLUTION: Solve the following system by addition, if possible. 6x + 8y = 9 3x - 3y = -2 x=? y=?

Algebra ->  Systems-of-equations -> SOLUTION: Solve the following system by addition, if possible. 6x + 8y = 9 3x - 3y = -2 x=? y=?      Log On


   

Question 263319: Solve the following system by addition, if possible.
6x + 8y = 9
3x - 3y = -2
x=?
y=?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!

6x + 8y = 9
3x - 3y = -2
multiply 2nd by -2
-6x+6y=4
6x+8y=9
add them
14y=13
y=13/14
x=11/42
3x-3(13/14)=-2
3x-39/14=-28/14
3x=11/14
3x=33/42
x=11/42