Solving inequalities

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions using symbols such as <, >, ≤, or ≥.

Front

What does it mean to solve an inequality?

Back

To solve an inequality means to find all values of the variable that make the inequality true.

Front

What is the solution to the inequality 3z = 27?

Back

z = 9.

Front

How do you isolate a variable in an equation?

Back

To isolate a variable, you perform inverse operations to get the variable alone on one side of the equation.

Front

What is the solution to the inequality 6x - 12 = 18?

Back

x = 5.

Front

What is the solution to the equation 2x + 6 = 20?

Back

x = 7.

Front

If grapes are $1.60 per pound and Rosie paid $1.92, how many pounds did she buy?

Back

1.2 pounds.

Front

What is the solution to the equation x - 15 = 20?

Back

x = 35.

Front

What does the symbol '<' mean in an inequality?

Back

The symbol '<' means 'less than'.

Front

What does the symbol '>' mean in an inequality?

Back

The symbol '>' means 'greater than'.