
The equation is
.
\
(Substitute
)
(Product of two same signs is positive)
(Add: y + 2y = 3y) \ \
According to division property of equality: if
, then
.
(Divide each side by 3)
(Cancel common terms)
(Divide:
)
Verify:
\To check the solution, substitute
in original equation.

(Multiply:
)
Compare the values, the equation is true. The solution is
.
The solution is
.