how do you solve this equation using the subsitiution method? x=5-2y, 3x-y=15

Question

must use the subsitution method to solve the equation x=5-2y, 3x-y=15

Answer 1

zatz the same 2 equashuns from a wile bak

but this time yu put "," tween the 2 parts...eezeeer tu reed

mite even get same anser

line 1: x=5 -2y

line 2: 3x-y=15

line 2...3*(5-2y) -y=15

-6y +15 -y=15

-5y=0

y=0....??? sound familyard ???

x=5-2y=5