SOLUTION: y=4x
x+y=5
Algebra.Com
Question 118572: y=4x
x+y=5
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given system
Plug in into the first equation. In other words, replace each with . Notice we've eliminated the variables. So we now have a simple equation with one unknown.
Combine like terms on the left side
Divide both sides by 5 to isolate x
Divide
Now that we know that , we can plug this into to find
Substitute for each
Simplify
So our answer is and
RELATED QUESTIONS
5 + 4x(x-y) -... (answered by Alan3354)
y=-x^2-4x+5 (answered by asuar010)
y=3/4x-4... (answered by RAY100)
y = x + 5
4x + y =... (answered by stanbon)
Y-5=x... (answered by TimothyLamb)
Y^2 = 4x+5... (answered by Fombitz)
x²-y=4x
y-2x=-5
(answered by Math10#)
y = x^2 + 4x - 5, y =... (answered by Boreal)
y=4x-9... (answered by checkley77)