The equation is .
Subtract from each side.
Take out common factors.
\Rewrite the equation .
Group terms with common factors.
\Factor the G.C.F from each grouping.
\Combine like terms using distributive property: .
\
Take square root on each side.
\Apply addition property of equality: If a = b then a + b = b + a.
\Add 5 to each side.
\Apply additive inverse property: .
Check:
\To check the solution substitute in
.
The solution is true. \ \
The values of .