The equation is .
Apply addition property of equality: Add 11 to each side.
\ (Apply Additive identity property:
)
(Apply Additive inverse property:
)
(Apply Additive identity property:
)
Apply subtraction property of equality: Subtract 2x from each side.
\Apply commutative property of addition: .
(Apply Additive inverse property:
)
(Apply Additive identity property:
)
Apply division property of equality: Divide each side by 3.
\ (Cancel common terms)
(Simplify) \ \
The value of .