1.4 a Solving One-Step Equations: Addition and Subtraction Assignment
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Solving One-Step Equations
Solve the equation and check your answer.
62 = 1 1 +
Which statements are correct? Check all that apply.
To undo what has been done to the variable, add 11 to both sides of the equation.
To undo what has been done to the variable, subtract 11 from both sides the equation
4.
n=5
4
3
n=7
1
Check the answer by substituting 5.
4
for the variable in the original equation

Problems and applications q5 four roommates are planning to spend the weekend in their dorm room watching old movies, and they are debating how many to watch. here is their willingness to pay for each film: willingness to pay (dollars) shen antonio dmitri jake first film 10 9 8 3 second film 8 7 6 2 third film 6 5 4 1 fourth film 4 3 2 0 fifth film 2 1 0 0 within the dorm room, the showing of a movie a public good. if it costs $12 to rent a movie, the roommates should rent movies in order to maximize the total surplus. suppose the roommates choose to rent the optimal number of movies you just indicated and then split the cost of renting equally. this means that each roommate will pay $ .