Answer:
X=0
Y=4
Step-by-step explanation:
3x=12-3y
x=4-y
Plug 4-y in for x in the other equation:
2(4-y)+4y=16
8-2y+4y=16
2y=8
y=4
If x=4-y and y=4, x=4-4=0
Answer:
x+8 i used mathaway i recommend it for math
Alright so this is what you do.
You need to isolate one variable so that it is y = or x =
Lets go with y = for the first one
-x +3y = -6
x - 3y = 6
Isolate y = by adding x for the first one and then subtracting x from the second one.
3y = -6 + x
-3y = 6 - x
You would then divide the second one by -3 and divide by 3 in the first one.
y = (-6 +x) / 3
y = (6 -x) / -3
Since this is what y = you can put them together.
-6+x) / 3 = 6-x)/-3 (I put one parenthesis for convenience)
This equation is now set and you aren't done yet.
You can take out -1 from each side. This makes it no solution since you must always multiply by -1.
(6+x) / 3 = -1( (6+x) / 3)
Try the second one on your own!
Answer:
70 to 220 i think im confused to
Step-by-step explanation:
