Final answer:
To simplify the expression x+2-5+3x, combine the x terms to get 4x and the constant terms to get -3. This simplifies the expression to 4x - 3. There are 4 x tiles that represent the simplified expression.
Step-by-step explanation:
To collect like terms in the expression x+2-5+3x, we group the x terms and the constant terms together. The x terms are x and 3x, which can be combined to give 4x. The constant terms are 2 and -5, which can be combined to give -3. Therefore, the simplified expression is 4x - 3.
Since the original expression had x and 3x as the x terms, the simplified expression represents 4 x tiles.
Learn more about Combining like terms in an algebraic expression