ANSWER TO QUESTION 1
The given equation is

We add the additive inverse of
which is
to both sides of the equation to obtain,

This gives us,


This further simplifies to

We divide both sides
to obtain,

ANSWER TO QUESTION 2
Since we got
as answer to question one, the next question to answer is

We add the additive inverse of
which is
to both sides to obtain,

This gives us,

This simplifies to


We now multiply both sides of the equation by
to obtain,

This implies that,

ANSWER TO QUESTION 3
The next equation is 
We add the additive inverse of
which is
to both sides of the equation to obtain,

This gives us,

This simplifies to,

We multiply both sides by the reciprocal or the multiplicative inverse of
to obtain,

This gives us,

ANSWER TO QUESTION 4.
The next question is 
We add the additive inverse of 15 to both sides of the equation to obtain,

This evaluates to

This implies that,

We multiply both sides by the multiplicative inverse or the reciprocal of 
This implies that,


ANSWER TO QUESTION 5
The next question to answer is
.
We add the additive inverse of
which is
to both sides of the equation to obtain,

This gives us,

We through by
to obtain,

ANSWER TO QUESTION 6

We add the additive inverse of
which is
to both sides of the equation to obtain,

This simplifies to;

We multiply both sides of the equation by the reciprocal of
to obtain,




ANSWER TO QUESTION 7
The next question to answer is
.
We add the additive inverse of
which is
to both sides of the equation to obtain,

This will evaluate to,

We now multiply both sides of the equation by
to obtain,


ANSWER TO QUESTION 8
The last question to solve now is 
We first of all multiply both sides of the equation by
to obtain,

This implies that,

We now add the additive inverse of
which is 7 to both sides of the equation to obtain,

This implies that
