Solve expressions with given variables

Front

What is a variable in mathematics?

Back

A symbol used to represent an unknown value, often denoted by letters such as x, y, or z.

Front

What does it mean to solve an expression?

Back

To find the value of the expression by substituting the variables with their given values.

Front

What is the expression for '4 times a variable n'?

Back

4n.

Front

How do you evaluate the expression 9 - j when j = 6?

Back

Substitute j with 6: 9 - 6 = 3.

Front

What is the result of the expression 7(12)?

Back

84.

Front

How do you solve the expression x - 15 when x = 41?

Back

Substitute x with 41: 41 - 15 = 26.

Front

What is the expression for '44 divided by a variable t'?

Back

44/t.

Front

How do you evaluate the expression 44/t when t = 4?

Back

Substitute t with 4: 44/4 = 11.

Front

What is the expression for '4 times n minus 15'?

Back

4n - 15.

Front

How do you solve the expression 4n - 15 when n = 6?

Back

Substitute n with 6: 4(6) - 15 = 24 - 15 = 9.