Adding and Subtracting Expressions Answers

At a farmers market, Samuel bought 3 pounds of apples for x dollars per pound and 2 bags of spinach for y dollars each. The next day he returned and bought 5 pounds of apples for x dollars per pound and 3 bags of spinach for y dollars each. Which expression represents the total amount he spent at the market on both days?

Jakob is asked to simplify the expression –3a + 4b + 5a + (–7b). He writes: –3a + 4b + 5a + (–7b) = –3a + 5a + 4b + (–7b).Which property allows him to do this?

Which expression is equivalent to ?

Carmen simplifies the expression . The coefficient of the variable y in her simplified answer is

Felipe is planning a party. He has $50.00 to spend on sandwiches that cost $2.50 per person, $25.00 to spend on drinks that cost $1.50 per person, and $25.00 to spend on gift bags that cost $3.00 per person. Which expression could be used to show the amount of money he will have left over if x people attend the party?

What is the simplest form of the expression (14.2a + 9.8b) – (13.1b – 0.2a) – (3.7a + 4.8b)?

Which expression is equivalent to (–3y – x) – (5y – 8x)?

What is the sum of (–2.1x + 3.7) and (5 + 4.9x)?

After simplifying, which expressions are equivalent? Select three options.

Clara simplifies and says the result is . What error did Clara make?