Solving for X Review

Front

What does it mean to 'solve for X'?

Back

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

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing one or more variables.

Front

What is a variable in mathematics?

Back

A variable is a symbol, often represented by letters like X or Y, that stands for an unknown value in an equation.

Front

What is the first step in solving a simple linear equation?

Back

The first step is to isolate the variable on one side of the equation, often by using addition or subtraction.

Front

How do you solve the equation 2X + 3 = 11?

Back

Subtract 3 from both sides to get 2X = 8, then divide both sides by 2 to find X = 4.

Front

What is the purpose of using inverse operations in solving equations?

Back

Inverse operations are used to undo operations applied to the variable, helping to isolate it and solve the equation.

Front

What does it mean to 'isolate the variable'?

Back

To isolate the variable means to manipulate the equation so that the variable is alone on one side, making it easier to find its value.

Front

What is the solution to the equation X/4 = 5?

Back

Multiply both sides by 4 to find X = 20.

Front

What is a coefficient in an equation?

Back

A coefficient is a numerical factor that multiplies a variable in an equation, such as the 2 in 2X.

Front

What is the difference between an equation and an expression?

Back

An equation contains an equal sign and states that two expressions are equal, while an expression does not have an equal sign.