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Terms
True or False
Translating Words into Equations
Algebraic Substitutions
Evaluating Expressions
100
A letter that represents a number or numbers.
What is a variable?
100
3 x 4 = 3 x 5
False 3 x 4 = 12 and 3 x 5 = 15.
100
Three times a number plus four equals seven.
What is 3x + 4 = 7?
100
Solve. x + 6 = ? x = 6
What is 12?
100
19 = x + 9
What is 10?
200
Numbers and variables, combined by operations.
What is an expression?
200
An expression represents the relationship between two variables.
False. An expression represents the relationship between a constant and a variable.
200
Five times a number minus three equals twelve.
What is 5x - 3 = 12?
200
Solve. ? = x + 3 x = 1
What is 4?
200
6x = 18
What is 3?
300
Can be solved using algebra.
What is an equation?
300
A linear relationship can be represented by drawing a straight line on a graph.
True.
300
Six divided by a number, multipled by three, plus two equals eleven.
What is 3(6/x) + 2 = 11.
300
Solve. 4x + 8 = ? x = 5
What is 28?
300
x + 6 = 15
What is 9?
400
Numbers that make a mathematical statement true.
What is a solution?
400
Hourly rate of pay at a job is an example of a constant rate relationship.
True.
400
Three times a number plus five equals twenty-six.
What is 3x + 5 = 26.
400
Solve. 5x + 8 = ? x = 7
What is 43?
400
7 + 2x = 7
What is 0?
500
An operation that undoes a related operation (e.g. + and - )
What is an opposite operation?
500
In the equation 25 + z = 36, z = 13.
False, z = 11.
500
Four times a number plus four divided by four equals eight.
What is (4x + 4) / 4 = 8?
500
Solve. 10 + 7x = ? x = 7
What is 59?
500
5x + 7 = 12
What is 1?