Which of the following is a linear equation in one variable?

What is the solution to the equation 2x - 3 = 5?

Which step would you take first to solve the equation 4x + 7 = 23?

What is the value of x in the equation 3x = -9?

Solve: 5x + 2 = 17

What kind of equation is 2x - 4 = 0?

Which equation is NOT linear?

What happens when you subtract the same number from both sides of an equation?

 If x + 5 = 12, what is the value of x?

 Which of the following represents the inverse operation of multiplication?

Linear equations can have two variables.

The solution to x + 2 = 5 is x = 3.

To isolate a variable means to keep it on one side of the equation.

x = 4 is a solution to the equation 2x = 10.

Linear equations form straight lines when graphed.

Adding 0 to both sides of an equation changes the solution.

A linear equation in one variable has exactly one solution.

The equation x^2 - 4 = 0 is linear.

Solving an equation means finding its variable's value.

Division is the inverse of multiplication.

A mathematical sentence that shows two expressions are equal.

The process of finding the value of the variable.

A number or symbol that multiplies a variable.

The inverse operation of addition.

 The operation used to undo multiplication.

 The variable in the equation x - 5 = 10.

The result when you solve an equation.

An equation that contains only one variable raised to the first power.

The value that makes an equation true.

The side of the equation that holds the variable being solved.

Solve this word problem: Anna bought 3 notebooks and 2 pens for a total of 110 pesos. Each notebook costs 30 pesos. How much is each pen?

Explain in your own words why it's important to apply inverse operations when solving equations. Give an example.