The equality is .
(Apply distributive property:
)
Apply subtraction property of equality: Subtract 28 from each side.
\ (Apply commutative property of addition:
)
(Apply additive inverse property:
)
(Apply additive identity property:
)
(Subtract:
)
(Divide each side by negative
)
(Cancel common terms)
(Divide:
)
Check:-
\To check, substitute 4, in .
(Substitute
)
(Multiply:
)
(Subtract :
)
(Multiply:
)
The equality is true.
The equality solution is .