SOLUTION: I need help with the steps in solving this problem. It says solve by substitution 3x-5y=41, x-y=11 Thank you, Brina

Algebra ->  Coordinate-system -> SOLUTION: I need help with the steps in solving this problem. It says solve by substitution 3x-5y=41, x-y=11 Thank you, Brina      Log On


   

Question 107080: I need help with the steps in solving this problem. It says solve by substitution 3x-5y=41, x-y=11
Thank you,
Brina
Answer by Annabelle1(69) About Me  (Show Source):
You can put this solution on YOUR website!
make x the subject of the formula for the second equation so it becomes
x=11+y. Substitute this into the first equation.
it then becomes
3(11+y)-5y=41
33+3y-5y=41
33-2y=41
-2y=41-33
-2y=8
y=8/(-2)
y=-4
sub this value into x=11+y to get you x value
x=11+-4
x=7