151k views
1 vote
Julia simplified the expression

1 (1/2) -4 (1/2)(1/2x - 1) Are her steps correct? If not, describe
where she went wrong, and solve it correctly showing all work.
a)1 (1/2)- 4 1/2(1/2x-1)
b)-3(1/2x - 1)
c)-3(1/2x)-3(-1)
d)- 3/2x + 3

1 Answer

1 vote

Final answer:

Julia correctly simplified the expression 1 (1/2) - 4 (1/2)(1/2x - 1) to its final form, which is - 3/2x + 3.

Step-by-step explanation:

The student, Julia, was trying to simplify the expression 1 (1/2) - 4 (1/2)(1/2x - 1). Julia's steps are as follows:

  1. 1 (1/2)- 4 1/2(1/2x-1)
  2. -3(1/2x - 1)
  3. -3(1/2x)-3(-1)
  4. - 3/2x + 3

Julia's simplification process is correct. The mistake often happens in the distribution step or in simplifying fractions. However, Julia correctly distributed the -4 1/2 to both terms in the parentheses and then correctly simplified the expression. The final simplified form is - 3/2x + 3.

User Joshbrows
by
7.9k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories