SOLUTION: solve the system of equations by using the substitution method
3x-4y=29
y=x-8
Algebra.Com
Question 546400: solve the system of equations by using the substitution method
3x-4y=29
y=x-8
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
3 x -5 y = 29 .............1
1 y = -8 + 1 x ---------2
/ 1 =
y = -8 + 1 x
Substitute y in (1)
3 x -5 ( -8 + 1 x ) = 29
3 x + 40 + -5 x = 29
3 x -5 x = 29 -40
-2 x = -11
/ -2
x= 5.5
Plug the value of x in (1)
3 x -5 y = 29
3 * 5.5 -5 y = 29
16.5 -5 y = 29
-5 y = 12.5
/ -5
y= -2.5
m.ananth@hotmail.ca
RELATED QUESTIONS
solve each system of equations by using the substitution method.
{3x + 4y = 18
{ (answered by Edwin McCravy)
Solve this system of equations by the substitution method.
x+4x=-1... (answered by Jstrasner)
Solve this system of equations by the substitution method.
x+4x=-1... (answered by Fombitz)
Solve the system of equations using the substitution method
1. x+y=4 (answered by richwmiller)
how do you solve each system of simultaneous equations by using the substitution method.
(answered by Fombitz)
Solve the system of linear equations using the Substitution Method.
x+2y=3... (answered by haileytucki)
Solve the system of equations using the substitution method. 3x-4y=17, (answered by 10301650)
Solve the system of equations by using the substitution method.
{2x – 3y=14
{y=x - 5
(answered by mananth,jorel1380)
solve the system of equations by using the substitution method
2x-3y=9,... (answered by jim_thompson5910)