The equation is .
Apply subtraction property of equality: Subtract from each side.
(Apply additive inverse property:
)
(Subtract:
)
(Divide:
)
Apply multiplication property of equality: Multiply each side by 4.
\ (Cancel common terms)
(Multiply:
)
Apply division property of equality: Divide each side by 3.
\ (Cancel common terms)
(Divide:
)
Check:
\To check the solution, substitute in original equation.
(Cancel common terms)
(Add:
)
(Add:
)
Compare the values, the equation is true.
\The value of z is .