

The equation is
.
To solve an absolute value equation is
,where c > o.
First it can write two equations.
\Equation 1: 

Equation 2: 

Solve equation 1 is
.
Apply addition property of equality: Add 6 to each side.
\
(Apply additive inverse property:
)
(Apply additive identity property:
)
(Add:
)
Apply multiplication property of equality: Multiply each side by
.

(Cancel common terms)
(Multiply:
)
Solve equation 2 is
.
Apply addition property of equality: Add 6 to each side.
\
(Apply additive inverse property:
)
(Apply additive identity property:
)
(Add:
)
Apply multiplication property of equality: Multiply each side by
.

(Cancel common terms)
(Multiply:
)
The solution set is
.