### Home > CCA2 > Chapter 1 > Lesson 1.2.1 > Problem 1-77

1-77.

Find the error in the solution at right. Describe the error and solve the equation correctly.

**Homework Help ✎**

Is the second equation equivalent to the first? Check the Order of Operations.

The multiplication has to be done before the subtraction.

If you got

you made an error. Now find your own mistake. Check your distributing. If you got something else, see if it makes the equation true.