Question

PART BA student is in the process of solving an equation. The original equations and the first step are shown below.Original : 4(a - 1) +3 = 18Step one: 4(a - 1) = 15Which property did the student use for the first step? Explain why this property is correct.f+BI U S XX,Font FamilyFont SizesАА

Answer 1

As per given by the question,

There are given that a original form is,

`4(a-1)+3=15`

Now,

The first step of the given equation is,

`\begin{gathered} 4(a-1)+3=15 \\ 4a-4+3=15 \end{gathered}`

Then,

The value of the given equation is,

`\begin{gathered} 4a-1=15 \\ 4a=15+1 \\ 4a=16 \end{gathered}`

So, here distributive properties used by the student to solving the first step.

Hence, the first step is 4a-4+3=15.