Question

Myra is evaluating the expression –31.7 + 4.5x, when x = 2.1. –31.7 + 4.5(2.1) –27.2(2.1) –57.12 What was Myra’s error?

Answer 1

Answer:

She added before multiplying instead of multiplying before adding

Step-by-step explanation:

–31.7 + 4.5x

Let  x=2.1

–31.7 + 4.5(2.1)

We multiply before adding

-31.7 +9.45

-22.25

Answer 2

Answer:

a negative and a positive

Step-by-step explanation:

always equal a negative

and she put x next to 31.7 when x was not meant to be there