Question

Jason writes an expression equivalent to -2 + 5(d + 1) - 6d. His work is shown below.
-2 + 5(d + 1) - 60
Step 1: 31d + 1) - 60
Step 2: 3d + 3-6d
Step 3: (3-6)d + 3
Step 4: –3d + 3
In what step does Jason first make an error, and what is his error?
Use the drop-down menus to explain and correct the error.

Answer 1

The step in which Jason made the error is; the first step and the error he made was that he didn't obey the BODMAS rule of algebra operations.

• We are told that Jason wants to write an expression that is equivalent to -2 + 5(d + 1) - 6d.

Now, his steps are;

Step 1; 3(d + 1) - 6d

There is already an error here because 5 is attached to the bracket and not standing alone.

Therefore, Jason should have used distributive property to multiply 5 by the numbers inside the bracket instead of treating the 5 like it is isolated to be added to -3. This is because in BODMAS, Bracket comes before addition.

Read more at; https://brainly.com/question/14646272