Answer:
.
Implied: 
.
Step-by-step explanation:
Get rid of the denominator by multiplying both sides of this equation with 
:
.
Isolate 
by moving 
to the left-hand side of the equation. That is: add 
to both sides of this equation.
.
By the symmetric property of equalities,
16 is the answer to this question.
Answer:
6, -4
Step-by-step explanation:
Not sure if correct but that's what I got
When both sides of an equation have the same number subtracted from each of them, so the remaining part of the equation is still equal
