SOLUTION: Can some please help me!! 3m +n=6 and m-7n=68 solve by the substitution

Algebra.Com
Question 470096: Can some please help me!!
3m +n=6 and m-7n=68 solve by the substitution

Found 2 solutions by esmy1234, Alan3354:
Answer by esmy1234(2)   (Show Source): You can put this solution on YOUR website!
m=5
n=9

Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
3m +n=6 and m-7n=68 solve by the substitution
------------------
3m +n=6
m-7n=68 --> m = 7n+68
Sub for m in the 1st eqn
3(7n+68) = n = 6
22n+204 = 6
n = -9
--------------
3m +n=6
3m - 9 = 6
m = 5

RELATED QUESTIONS

Can someone help me solve and get the solution of the system using the substitution... (answered by ankor@dixie-net.com)
can you please help me solve by either the substitution or the additon-or-subtraction... (answered by Alan3354)
Use the substitution method to solve m - n = 7 and 3m + 2n =... (answered by fractalier)
Could someone please check my work and show me how to finish this problem? solve by... (answered by rfer)
solve by substitution 3m + n =1 m - 4n =... (answered by LarissaRichardson)
please help me solve for m 3m - 12 =... (answered by gonzo)
3m-7n=p solve for m I've tried dividing 7n by itself, and then by p, and came up... (answered by jim_thompson5910)
Use the substitution method to solve the system of equations. Please show all work! m - (answered by Help Math)
Solve by using the substitution method 3m+n=0... (answered by drj)