Lesson 4.1: Solving Equations Using Addition and Subtraction

Front

What is the first step to solve the equation y - 14 = 66?

Back

Add 14 to both sides of the equation.

Front

What is the solution to the equation X - 1/4 = 1/4?

Back

X = 2/4 (or 1/2)

Front

How do you isolate the variable X in the equation 18 + X = 20?

Back

Subtract 18 from both sides of the equation.

Front

What is the solution to the equation X - 19 = -19?

Back

X = 0

Front

What does it mean to solve an equation?

Back

To find the value of the variable that makes the equation true.

Front

What is the principle of inverse operations in solving equations?

Back

Using the opposite operation to isolate the variable.

Front

If you have the equation X + 5 = 12, what is the first step to solve for X?

Back

Subtract 5 from both sides.

Front

What is the solution to the equation 3 + X = 10?

Back

X = 7

Front

What is the solution to the equation 50 = Y + 20?

Back

Y = 30

Front

What is the purpose of checking your solution after solving an equation?

Back

To verify that the solution satisfies the original equation.