SOLUTION: Solve the system of equations using the substitution method. If the answer is a unique solution, present it as an ordered pair: (x,y). If not, specify whether the answer is "no s

Question 161716: Solve the system of equations using the substitution method.
If the answer is a unique solution, present it as an ordered pair: (x,y). If not, specify whether the answer is "no solution" or "infinitely many solution."
7x+y=1
3x+2y=-9
Answer by nabla(475) (Show Source): You can put this solution on YOUR website!
from the first:
y=1-7x
Put that y into the second equation:
3x+2(1-7x)=-9
3x+2-14x=-9
-11x=-11
x=1

If x=1,
y=1-7(1)=-6
check:
7-6=1
3-12=-9
yes.

RELATED QUESTIONS
Solve the system of equations using either the substitution or the elimination method. If (answered by venugopalramana)

Solve the system of equations using the substitution method. If the answer is a unique... (answered by jim_thompson5910)

Help I cant figure this out!!! Please break it down fo rme so i can understand it.... (answered by stanbon)

Solve the system of equations using the substitution method. If the answer is a unique... (answered by Alan3354)

Please show me how to solve this in easy to understand terms.Thanks Solve the system... (answered by jim_thompson5910)

Solve the system of equations using the substitution method. If the answer is a unique... (answered by stanbon)

Solve the system of equations using the substitution method. If the answer is a unique... (answered by rmromero)

Solve the system of equations using the substitution method. If the answer is a unique... (answered by jim_thompson5910)

. Solve the system of equations using the substitution method. If the answer is a... (answered by oscargut)