SOLUTION: Solve each system by elimination 3m+4n= -13 3m+6m= -19

Algebra ->  College  -> Linear Algebra -> SOLUTION: Solve each system by elimination 3m+4n= -13 3m+6m= -19       Log On


   

Question 162974This question is from textbook Algebra 2
: Solve each system by elimination
3m+4n= -13
3m+6m= -19
This question is from textbook Algebra 2

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
3m+4n= -13
-(3m+6[n]= -19) assuming the second term is suposed to be an n not an m.
---------------- subtract the second from the first equation.
-2n=6
n=6/-2
n=-3 Answer.
3m+4*-3=-13
3m-12=-13
3m=-13+12
m=-1/3 Answer.