One Step Equations
Solve: x + 6 = 10
What is x=4
A letter used to represent a number
What is a variable?
"a number plus 3"
What is x + 3?
Simplify: 4 + 5x when x = 2
What is 14?
If you buy a candy bar for $2 and pay with a $5 bill, how much change do you get?
What is 5 - 2 = x?
Solve: x - 7 = 3
What is x = 10?
A math sentence with an equals sign
What is an equation?
Represent: "5 more than a number"
What is x + 5?
Simplify: 3x + 2x
What is 5x?
Sarah has some apples. She buys four more. Now she has 10. Write the equation.
What is x + 4 = 10?
Solve: 5x = 20
What is x = 4?
A combination of numbers, variables, and operations
What is an expression?
Represent: "double a number minus 4"
What is 2x - 4?
Evaluate: 2x + 3 when x = 4
What is 11?
A movie ticket costs $12. How many tickets can you buy with $60?
What is 12x = 60?
Solve: x ÷ 3 = 8
What is x = 24?
A value you can put in for a variable to make an equation true
What is a solution?
Represent: "A number divided by 6"
What is x ÷ 6?
Combine like terms: 7x - 2x + 5
What is 5x + 5?
Jim mows lawns for $15 each. He made $75. Write an equation to find how many lawns he mowed.
What is 15x = 75?
Solve: 2x - 4 = 10
What is x = 7?
The opposite operation used to undo another operation
What is an inverse operation?
Represent: "The difference of a number and 9, all multiplied by 3"
What is 3(x - 9)?
Combine like terms 4x-2x+5-1
What is 2x+4
The total price of T-shirts (P) is the product of the number of Shirts purchased (N) and the cost (C)
NC=P or P=NxC