Mastering 1-Step Equations: Addition and Subtraction

The video tutorial introduces one-step equations, focusing on solving them using inverse operations. It covers examples involving addition and subtraction, including negative numbers and decimals. The tutorial emphasizes the importance of balancing equations and checking solutions. It concludes with word problems that require writing and solving equations to find unknown values.

What is the primary goal when solving an equation?

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

• To eliminate all variables

• To balance both sides of the equation

• To simplify the equation

What is the inverse operation of adding 3?

• Dividing by 3

• Adding 3

• Subtracting 3

• Multiplying by 3

If x + 13 = -31, what is the value of x?

• -13

• -31

• -18

• -44

What is the result of 45 + 17.8?

• 62.8

• 63.8

• 61.8

• 60.8

In the equation 45 = x - 17.8, what operation should be used to isolate x?

• Multiply both sides by 17.8

• Divide both sides by 17.8

• Add 17.8 to both sides

• Subtract 17.8 from both sides

What is the value of x in the equation -29 = -4 + x?

• -25

• -4

• -33

• -29

In the word problem, what was the cost of a World Series ticket in 2007 if the 2000 ticket cost $450 and was $180 more than the 2007 ticket?

• $270

• $180

• $630

• $450

What is the equation to represent the word problem where Isaac started with $78 and ended with $298 after depositing his paycheck?

• x + 78 = 298

• x - 78 = 298

• 78 - x = 298

• 298 + x = 78

What is the value of Isaac's paycheck if he started with $78 and ended with $298?

• $298

• $220

• $376

• $78

Why is it important to learn the steps to solve equations?

• To be prepared for more complicated problems

• To impress the teacher

• To avoid using a calculator

• To solve equations faster