The inequality is .
Writer as
The first inequality is .
Apply addtion property of inequlity: Add 4 to each side.
\ (Apply addtive inverse property:
)
(Apply addtive identity property:
)
(Add:
)
The next inequality is .
Apply addtion property of inequlity: Add 4 to each side.
\ (Apply addtive inverse property:
)
(Apply addtive identity property:
)
(Add:
)
Graph the solution set on number line.
The solution set .