The equation is .
According to addition property of equality: if a = b, then a + c = b + c.
\ (Add 4.3 to each side)
(Additive inverse property:
)
(Add: 14.5 + 4.3 = 18.8)
According to subtraction property of equality: if , then
.
(Subtract 12.6k from each side)
(Commutative property: a + b = b + a)
(Additive inverse property:
)
(Subtract:
)
According to division property of equality: if , then
.
(Divide each side by negative 9.4)
(Cancel common terms)
(Divide:
)
Check:
\To check the solution, substitute in original equation.
(Multiply:
)
(Subtract:
)
(Add:
)
Here the solution is true.
\The value of the expression is .