Solving a two step equation of decimals

The video tutorial explains how to solve a two-step equation involving decimals. It emphasizes the importance of understanding inverse operations and the multiplication property of -1. The instructor guides students through solving the equation step-by-step, addressing common challenges such as handling negative variables and decimals. The tutorial encourages students to practice solving problems in their heads but also reassures them that using calculators is acceptable. The key takeaway is to treat decimals like any other numbers and to use the reverse order of operations to solve equations effectively.

What is the main challenge students face when solving equations with decimals?

• Understanding the properties of operations

• Performing calculations without a calculator

• Dealing with decimal points

• Remembering the order of operations

What is the first step in solving the equation -9.5 = -y + 7.1?

• Multiply both sides by -1

• Divide both sides by -1

• Subtract 7.1 from both sides

• Add 7.1 to both sides

After subtracting 7.1 from both sides, what is the resulting equation?

• 0 = y

• -2.4 = y

• 16.6 = y

• -16.6 = -y

How do you convert a negative variable to a positive one?

• Multiply by -1

• Divide by -1

• Subtract 1 from both sides

• Add 1 to both sides

What should you remember when dealing with decimals in equations?

• They should be treated like any other numbers

• They require special calculators

• They are more complex than whole numbers

• They cannot be solved using inverse operations