SOLUTION: solve system using substution method
4x+y=5
5y=x+y
solution (?,?)
Algebra.Com
Question 207839: solve system using substution method
4x+y=5
5y=x+y
solution (?,?)
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!
Did you copy this one correctly? Should the second equation should be 5=x+y? Either one is somewhat ugly, so I'll go with your problem as stated.
In the second equation, subtract y from each side.
5y=x+y
4y=x
Substitute this into the first equation for x:
4x+y=5
4(4y)+ y = 5
16y + y=5
17y=5
y=5/17
To solve for x, go back to the equation x=4y
x=4y
x=4(5/17)
x=20/17
The solution is (20/17,5/17)
Check in the OTHER equation
4x+y =5
It checks!!
R^2
RELATED QUESTIONS
solve system using substution method
5x+y=2
5y=x+9
solution... (answered by rfer,MathTherapy)
solve system using the substution method
x=-y+9
-2x+y=5
solution... (answered by Alan3354)
solve the system of equations using the substution method
-5x-y=18
x+2=9... (answered by rfer)
solve the system using the substution method
5x-4y=-5
7x+y=21
solution... (answered by drj)
solve the system using the substution method
2x-6y=-4
7x+y=25
solution... (answered by checkley77)
solve system using substution method
x+2y=20
5x-2y=16
solution... (answered by checkley77)
solve each system using the substution method. 2x+2y=7 and... (answered by ankor@dixie-net.com)
Can someone help me solve the solution of the system using the substution method?
8x... (answered by mananth)
Solve by using the substution method. Leave answers in reduced improper fraction form... (answered by mananth)