
The equation is 
Subtraction property of equality: if
, then
.
(Subtract 3 from each side)
(Additive inverse property:
)
(Additive inverse property:
)
(Subtract:
)
(Multiply each side by 4)
(Cancel common terms)
(Multiply:
)
Check:
\To check the solution, substitute
in equation
.

(Divide:
)
(Add:
)
The equation is true. The solution is
.
The value of
.