y = 200-7
0 ≤ y ≤ 7
x < y : x is less than y.x ≤ y : x is less than or equal to y. x > y : x is greater than y.x ≥ y : x is greater than or equal to y.
4
Y - 12 < -10 Add 12 to both sides: Y < 2
y = 200-7
Write an expression for "7 less than y."
Y + 7 = 7 more than y.
If: 3y-7 = 2y+9 Then: 3y-2y = 9+7 So: y = 16
Y+6
--------------- x+y=10 x-y=4 => x=y+4 ...=>y=3 =>x=7 The answer can be either 37 or 73 but since it should be less than 40... => The answer is 37. ---------------
0 ≤ y ≤ 7
y - 3
y/5 + 7
x = 4z/5 y = .72z 5x/4 = z By subsitution, we have: .9x = y Thus, x is 10% more than y, and Without Loss of Generality, y is 10% less than x.
y^2 + 7
The expression is: y/5 plus 7