Simplify the expression. Write your answers using integers or improper fractions.

-2/3 (1/3g - 3/4) - 10g

1 answer

To simplify the expression \(-\frac{2}{3} \left(\frac{1}{3}g - \frac{3}{4}\right) - 10g\), we'll start by distributing \(-\frac{2}{3}\) into the parentheses.

  1. Distribute \(-\frac{2}{3}\):

\[ -\frac{2}{3} \cdot \frac{1}{3}g - \left(-\frac{2}{3} \cdot \frac{3}{4}\right) \]

Calculating each term individually:

  • \(-\frac{2}{3} \cdot \frac{1}{3}g = -\frac{2}{9}g\)
  • \(-\frac{2}{3} \cdot -\frac{3}{4} = \frac{2 \cdot 3}{3 \cdot 4} = \frac{6}{12} = \frac{1}{2}\)

So we have:

\[ -\frac{2}{9}g + \frac{1}{2} \]

  1. Now combine this result with \(-10g\):

\[ -\frac{2}{9}g + \frac{1}{2} - 10g \]

To combine the \(g\) terms:

\(-10g\) can be represented as \(-\frac{90}{9}g\) (to get a common denominator of 9).

Thus:

\[ -\frac{2}{9}g - \frac{90}{9}g = -\frac{2 + 90}{9}g = -\frac{92}{9}g \]

  1. Therefore, the expression now is:

\[ -\frac{92}{9}g + \frac{1}{2} \]

This form is convenient. To express the entire expression with a common denominator, we can convert \(\frac{1}{2}\) to have a denominator of 18:

\[ \frac{1}{2} = \frac{9}{18} \]

Now, we convert \(-\frac{92}{9}g\) to have a denominator of 18, which is:

\[ -\frac{92}{9}g = -\frac{184}{18}g \]

Now, we can write the entire expression as:

\[ -\frac{184}{18}g + \frac{9}{18} \]

Combining these into a single fraction:

\[ -\frac{184g - 9}{18} \]

So the simplified expression is:

\[ -\frac{184}{18}g + \frac{9}{18} \]

While it can be delivered in individual parts, traditionally we combine like terms where they apply. In conclusion, the final simplified expression is:

\[ -\frac{92}{9}g + \frac{1}{2} \quad \text{or} \quad -\frac{184g - 9}{18} \]

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