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What term can you add to [tex]\frac{5}{6}x - 4[/tex] to make it equivalent to [tex]\frac{1}{2}x - 4[/tex]?

A. [tex]-\frac{1}{3}x[/tex]
B. [tex]-\frac{1}{3}[/tex]
C. [tex]\frac{1}{2}x[/tex]
D. [tex]\frac{1}{2}[/tex]

Answer :

To solve this problem, we want to determine which term needs to be added to the expression [tex]\(\frac{5}{6}x - 4\)[/tex] to make it equivalent to [tex]\(\frac{1}{2}x - 4\)[/tex].

Let's break down the steps:

1. Understand the requirement: We need [tex]\(\frac{5}{6}x - 4 + \text{term} = \frac{1}{2}x - 4\)[/tex].

2. Simplify the equation: Since both sides have a [tex]\(-4\)[/tex], we can remove these from both sides, leaving us with:
[tex]\[
\frac{5}{6}x + \text{term} = \frac{1}{2}x
\][/tex]

3. Find the term: To find the term, we subtract [tex]\(\frac{5}{6}x\)[/tex] from both sides to solve for the term:
[tex]\[
\text{term} = \frac{1}{2}x - \frac{5}{6}x
\][/tex]

4. Subtract the fractions: To subtract these fractions, we need a common denominator. The least common denominator of 2 and 6 is 6.

Rewrite [tex]\(\frac{1}{2}x\)[/tex] with a denominator of 6:
[tex]\[
\frac{1}{2}x = \frac{3}{6}x
\][/tex]

5. Perform the subtraction:
[tex]\[
\frac{3}{6}x - \frac{5}{6}x = -\frac{2}{6}x
\][/tex]

6. Simplify the fraction:
[tex]\[
-\frac{2}{6}x = -\frac{1}{3}x
\][/tex]

So, the term that needs to be added is [tex]\(-\frac{1}{3}x\)[/tex]. Therefore, the correct answer is:

[tex]\(-\frac{1}{3}x\)[/tex]

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