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
X + 3y - 2y + 3y = X + (3-2+3)y = X + 4y
3x + 7y
3y+1
If y + 3y + 10 = 70, then 4y + 10 = 70, and 4y = 60. We then find that y = 60/4 = 15.
4y + 7 < 3y + 9 4y - 3y < 9 - 7 y < 2
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
10x - 3y + 2x - 4y =(10x + 2x) + (-3y - 4y) =12x - 7y
-7y + 4y = -3y
4y + 4 = 3y - 5 y = -9
2x + 3y = 17 3x + 4y = 24 (2x + 3x) + (3y + 4y) = (17 + 24) 5x + 7y = 41
10x+2x-3y-4y=12x-7y
-3y
4y + 7 = 3y + 9-3y-7 -3y-7y = 24(2) + 7 = 3(2) + 98 + 7 = 6 + 915 = 15
It is the same as: 6x+4y
X + 3y - 2y + 3y = X + (3-2+3)y = X + 4y
4y-3y = 1