Isolate the variable by dividing each side by factors that don't contain the variable.
Inequality Form:
x
≥
−
3
x
≥
-
3
Interval Notation:
[
−
3
,
∞
)
To find a, you need to isolate/get the variable "a" by itself in the equation:
Multiply the inverse of 1/2, which is 2, to get rid of the fraction

a - 7 = 66 Add 7 on both sides to get "a" by itself
a - 7 + 7 = 66 + 7
a = 73
Answer:
-25
Step-by-step explanation:
Answer: y=2x+1 is parallel & y=-2x+5 is perpendicular
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