

The equation is
.
Apply subtraction property of equality: Subtract 4j from each side.
\
Rearrange the terms using commutative property of addition:
.
(Subtract:
)
Apply subtraction property of equality: Add 7 to each side.
\
(Add:
)
Apply division property of equality: If a = b then
.
(Divide each side by 2)
(Cancel common terms)
Verify:
\To check the solution, substitute
in original equation.


(Cancel common terms)
(Multiply:
)
(Add:
and Subtract:
)
Compare the values, the equation is true.
The solution is
.