Math
posted by Haylie .
x+y=20
x=y4
Please help me solve each system of equations and show your work thanks

use substitution, sub the 2nd into the 1st
x+y = 20
(y4) + y = 20
2y = 24
y = 12
back into x = y4
x = 124 = 8
x = 8, y = 12