Solving Equations and Inequalities

Front

What is an equation?

Back

An equation is a mathematical statement that shows that two expressions are equal, often containing a variable (e.g., x + 2 = 5).

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions and shows that one is greater than, less than, or not equal to the other (e.g., x < 5).

Front

Solve: x + 12 = 19

Back

x = 7

Front

Solve: x - 9 = 27

Back

x = 36

Front

Solve: x + 15 = 34

Back

x = 19

Front

Which number makes this inequality true: x < 45?

Back

x = 37 is true because 37 is less than 45.

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 solution to an inequality?

Back

The solution to an inequality is a range of values that satisfy the inequality condition.

Front

If x + 5 > 10, what can we say about x?

Back

x must be greater than 5.

Front

What is the first step to solve the equation x + 8 = 15?

Back

Subtract 8 from both sides to isolate x.