Expressions, Equations, Inequalities (Units 4,5)

Front

What is a variable?

Back

A variable is a symbol, usually a letter, that stands for a number.

Front

How do you isolate the variable k in the equation k/11 = x?

Back

Multiply both sides by 11.

Front

If Tiffany brought $30 to the mall and spent $14 on a softball and $6 for a snack, what expression represents her remaining money?

Back

30 - (14 + 6)

Front

What is the coefficient of x in the expression 8 + 5x - y?

Back

5

Front

What is the inverse operation of adding 53 in the equation y + 53 = 99?

Back

Subtract 53.

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols.

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value of the variable that makes the equation true.

Front

What is the difference between an equation and an inequality?

Back

An equation states that two expressions are equal, while an inequality shows that one expression is greater than or less than another.

Front

What is a coefficient in an algebraic expression?

Back

A coefficient is a numerical factor that multiplies a variable.

Front

How do you represent the expression 'twice a number x'?

Back

2x.