You will get nonsense. You cannot plug x2y + 4 into anything!
Plug in numbers. If you don't know which numbers to plug in, solve the equation for y to give you a better idea. It ends up being y=(-x/3) - 2
3y +3y = 6y
3y + 4z + 12y = 3y -3y -3y ------------------------- 4z + 12y = 0 divide everything by 4 z + 3y = 0 -3y -3y z = -3y
It cannot be answered because we do not know what x and y are.
-x+3y+6x-6y=5x-3y
The equation for 3y + 3y = -1 is 3y + 3y = -1.
5x+3y
X + 3y - 2y + 3y = X + (3-2+3)y = X + 4y
It's 5hx+10kx6y.
I don't know whether it's y^2-3y+2+3y-4y-5 or 2y-3y+2+3y-4y-5, so I'll do both.y^2-3y+2+3y-4y-5y^2+(-3y+3y-4y)+(2-5); group them togethery^2+(-4y)+(-3)y2-4y-3OR2y-3y+2+3y-4y-5(2y-3y+3y-4y)+(2-5); group them together(-2y)+(-3)-2y-3
-3y + y = -2y
-x+3y=14x+5y=13first I'll solve for y-x+3y=13y=x+1y=x/3+1/3-->plug this in for y into the other equation4x+5(x/3+1/3)=134x+5x/3+5/3=1317x/3=34/317x=34x=2--->plug this in for x in either equation and solve for y-x+3y=1-2+3y=13y=3y=1, x=2