The equation is .
Apply subtraction property of equality: If a = b then a c = b
c.
(Subtract 3 from each side)
Apply commutative property of addition: a + b = b + a.
\ (Apply additive inverse property:
)
(Subtract:
)
\
Apply division property of equality: If a = b then .
(Divide each side by 8)
(Cancel common terms) \ \
(Divide:
)
(Multiply each side by negative one)
(Product of two same signs is posititve) \ \
The value of .