Solve the following equation-

p-4 = (-9) + p

Simplifying p + - 4 = (-9) + p

Reorder the terms: - 4 + p = (-9) + p - 4 + p = - 9 + p

Add '-1p' to each side of the equation. - 4 + p + - 1p = - 9 + p + - 1p

Combine like terms: p + - 1p = 0 - 4 + 0 = - 9 + p + - 1p - 4 = - 9 + p + - 1p

Combine like terms: p + - 1p = 0 - 4 = - 9 + 0 - 4 = - 9

Solving - 4 = - 9