Writing and Solving Expressions

Front

What is the expression for the total cost of tickets for a group of people if each ticket costs $25?

Back

25t, where t is the number of people.

Front

How do you solve the equation 11x = 121 for x?

Back

Divide both sides by 11 to get x = 11.

Front

If Mr. Ngo ate five more cookies than Mrs. Sanyal, how can this be expressed in terms of s (the number of cookies Mrs. Sanyal ate)?

Back

The expression is s + 5.

Front

What equation models the total earnings of Cheryl who is paid $8 per hour for h hours if she made $96 last week?

Back

The equation is 8h = 96.

Front

How do you solve the equation 4 + x = 10 for x?

Back

Subtract 4 from both sides to get x = 6.

Front

What is a variable in algebra?

Back

A symbol, often a letter, that represents a number in mathematical expressions or equations.

Front

What does it mean to solve an equation?

Back

To find the value of the variable that makes the equation true.

Front

What is an expression in mathematics?

Back

A combination of numbers, variables, and operators (like +, -, *, /) that represents a value.

Front

What is the difference between an equation and an expression?

Back

An equation states that two expressions are equal, while an expression does not include an equality sign.

Front

How do you isolate a variable in an equation?

Back

By performing inverse operations to get the variable alone on one side of the equation.