The equation is
Apply distributive property: a(b-c)=ab-ac
\ (Multiply:
)
Apply Subtraction property of equality: Subtract 12p from eachside.
\ (Commutative property: a+b=b+a)
(Additive inverse property:
)
(Additive identity property:
)
The statement 10=9 is never true.
The equation has no solution and the solution set is .