y = x + 4
y = 2x + 5
Solve.
r + 11 = -8r + 29
What is r = 2?
x = 4y
2x + 3y = 22
The sum of two numbers is 104. Their difference is 68. What are the numbers?
What are x + y = 104 and x - y = 68?
y = 3x - 2
y = -x - 2
Solve.
18 = 3 (3x - 6)
What is x = 4?
y = x - 2
3x - y = 16
A shopper bought 6 shirts and 8 hats for $700. A week later, at the same prices, he bought 9 shirts and 6 hats for $660. What was the cost of one shirt?
What is 6x + 8y = 700 and 9x + 6y = 660?
The answer to an equation or system of equations.
What is a solution?
y = -3
x = 5
Solve.
3+ 4x + 6 = 17
What is x = 2?
y = 3x - 1
7x + 2y = 37
DEFINE YOUR VARIABLES: The number of each type of ticket sold in the following situation: Tickets to a football game cost $5.oo if purchased before the day of the game. They cost $7.50 if purchased at the game. For a particular game, 600 tickets were sold and the receipts were $3500.
What is x = presale tickets and y = at game tickets?
y = (1/3)x - 3
2x - y = 8
Solve.
-5n - 8(1 + 7n) = -8
What is n = 0?
3s - 2t = 4
t = 2s - 1
DEFINE YOUR VARIABLES: A girl bought 2 bracelets and 3 rings for $25. Her friend bought 5 bracelets and a ring for $55. What is the cost of each item?
What is x = cost of bracelets and y = cost of rings?
What form must equations be in to graph?
What is slope-intercept form?
y - 3x = 3
y = 3x - 2
Solve.
8(4k - 4) = -5k - 32
What is k = 0?
t + u = 12
t = (1/3)u
The amount of sales of a lemonade stand for 7 large and 2 small cups of lemonade is $11.50. For 4 small and 5 large cups the sales are $9.25. What does each size cost?
What is 7x + 2y = 11.50 and 4y + 5x = 9.25?