Question

Nisha did the work below to solve an equation.

Step 1
Step 2
Step 3
Step 4.
7b+3.2b-5-18.92
10.2b-5-18.92
5.2b- 18.92
D=3.64
In which step did Nisha make her first error?
O Step 1
O Step 2
O
Step 3
Step 4
​

Answer 1

Step 3.

Explanation:

She subtracted the 5 from 10.2b even though 5 did not have the variable b.

Answer 2

Answer:step 3

Explanation: