SOLUTION: Solve the systems of equations by using the substitution method. (If the system is dependent, enter a general solution in terms of c. If there is no solution, enter NO SOLUTION.)

Algebra ->  Inequalities -> SOLUTION: Solve the systems of equations by using the substitution method. (If the system is dependent, enter a general solution in terms of c. If there is no solution, enter NO SOLUTION.)       Log On


   



Question 1130338: Solve the systems of equations by using the substitution method. (If the system is dependent, enter a general solution in terms of c. If there is no solution, enter NO SOLUTION.)
{y = 3x− 7
y= 5x− 9
(x, y) =

Found 2 solutions by Alan3354, MathLover1:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
DO NOT tell us what to do if there is no solution.

Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

y+=+3x-7.....eq.1
y=+5x-9.....eq.2
-----------------------------------
y+=+3x-7.....eq.1..........substitute y from eq.2
5x-9+=+3x-7.....solve for x
5x-3x+=+9-7
2x+=+2
x+=+1
go to y=+5x-9.....eq.2...substitute 1 for x

y=+5%2A1-9
y=+-4

answer:
(x, y) =(1, -4)