The equation form of the verbal sentence is .
(Write the equation)
(Add n to each side)
(Add:
)
(Apply additive identity property:
)
(Subtract 15 from each side)
(Group like terms)
(Subtract:
)
(Apply additive identity property:
)
(Divide each side by 2)
(Cancel common terms)
(Divide:
)
The solution is .
The equation form of the verbal sentence is .
The solution is .