The inequality is .
Apply multiplication property of inequality: Multiply each side by 6.
\ (Cancel common terms)
(Apply distributive property: (b + c)a = ba + ca)
(Multiply:
)
Apply addition property of inequality: Add 4 to each side.
\ (Apply additive inverse property:
)
(Apply additive identity property:
)
(Add: 12 + 4 = 16)
Apply addition property of inequality: Add 30x to each side.
\Apply commutative property of addition: a + b = b + a.
\ (Apply additive inverse property:
)
(Apply additive identity property:
)
(Add: 2x + 30x = 32x)
Apply division property of inequality: Divide each side by 32.
\ (Cancel common terms)
(Divide:
)
Check:
\To check, substitute three different values for x into the original inequality: 0.5, a number less than 0.5, and greater than 0.5.
\Let three values are .
If then
(This is false)
If then
(This is true)
If then
(This is true).
The inequality solution set is .