Answer:
x = 4.1 & x = −4.1
Step-by-step explanation:

x = ±√17
x = √17, −√17
x = 4.1 & x = −4.1
64 less than y = y-64
no less = greater or equal than
negative 128 = -128
y-64 ≥ -128
Add 64 to both sides of the inequality:
y-64+64 ≥ -128+64
y ≥ -64
interval :
[-64,∞)
Complete solution is given in attachment below.
Hi the answer is: -12x + 7