SOLUTION: y= 4X X+Y=5 How do I solve this equation?

Question 791172: y= 4X
X+Y=5
How do I solve this equation?
Found 2 solutions by wilft1, rothauserc:
Answer by wilft1(217) (Show Source): You can put this solution on YOUR website!
if y = 4x, then substitute that in for the bottom equation
make x + y = 5 into x + 4x = 5 then solve
x + 4x = 5
combine like terms
5x = 5
divide both sides by 5
x = 5/5
x = 1
Answer by rothauserc(4718) (Show Source): You can put this solution on YOUR website!
y= 4X
X+Y=5
substitute for y in the second equation
x +4x = 5
5x = 5
x = 1
y = 4*1
y = 4
solution is x = 1, y = 4

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