y = -x/4 + 4
x +2y = 6
We need to solve y= -1/4 x + 4 for y
Let's start by substitute -1/4 x +4 for y in x+2y=6
x + 2y =6
x + 2(-1/4 x+4) =6
1/2 x + 8 =6
1/2 x = 6 - 8
1/2 x = -2
x = -2/1/2
x = -4
Now we need to find the value for y
Let's find it by substitute -4 for x in y= -1/4 x +4
y = -1/4 x + 4
y= -1/4 (-4) +4
y= 4/4 + 4
y = 1 + 4
y= 5
Answer : Y=5 and x= -4
I hope that's help... If you have any questions please let me know !
Good night :)
