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?

One week, Isabelle bought 2 bags of apples and 3 bags of oranges. The next week, she bought 1 bag of apples and 2 bags of oranges. If a represents the cost of each bag of apples and r represents the cost of each bag of oranges, which expression could Isabelle use to calculate the difference between the amounts she spent each week?

On Friday, there were x students at the baseball game. On Monday, there were half as many students at the game as there were on Friday. On Wednesday, there were 32 fewer students at the game as there were on Friday. Which expression could represent the total number of tickets sold for all 3 games?

Ella simplifies and says the result is b 5r. What error did Ella make?

Katrina is asked to simplify the expression . She writes: Which property allows her to do this?

Which facts could be applied to simplify this expression? Check all that apply.