This document provides examples for simplifying algebraic expressions by combining like terms. The first example expression is 8x - 20y + 12xy, which can be simplified to 8x + 20y + 12xy. The second example asks to simplify the expression 3x + 6y + 10xy + 3y, which combines to 3x + 10y + 10xy. Simplifying expressions involves combining terms with the same variables and exponents.