The equation is
.
The above equation in the form
where
and it is equivalent to the statement
.
Rewrite the equation
as two equations
. Then solve each equation separately.
Solve the equation 1:
.
Subtract 7 from each side.
\

.
Divide each side by 2.
\
Cancel common terms.
\
.
Solve the equation 2:
.
Subtract 7 from each side.
\

.
Divide each side by 2.
\
Cancel common terms.
\
.
The solutions of the equation are
.