IM 7.6.9 Lesson: Dealing with Negative Numbers
Which equation doesn’t belong? Explain your reasoning.
Solve each equation. Explain your reasoning.
Here are some equations that all have the same solution.
Explain how you know that each equation has the same solution as the previous equation. Pause for discussion before moving to the next question.
Keep your work secret from your partner. Start with the equation . Do the same thing to each side at least three times to create an equation that has the same solution as the starting equation. Write the equation you ended up with on a slip of paper, and trade equations with your partner. Also, write the equation here.
See if you can figure out what steps they used to transform into their equation. When you think you know, check with them to see if you are right. Briefly explain what your partner did to get their equation.