To simplify the expression \(-\frac{3}{4}r + 3 - \frac{5}{6}r - 6\), follow these steps:
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Combine like terms: First, we'll group the \(r\) terms together and the constant terms together.
\(-\frac{3}{4}r - \frac{5}{6}r + 3 - 6\)
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Combine the constant terms:
\(3 - 6 = -3\)
So now the expression looks like:
\(-\frac{3}{4}r - \frac{5}{6}r - 3\)
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Combine the \(r\) terms: To do this, we need a common denominator for \(-\frac{3}{4}r\) and \(-\frac{5}{6}r\). The least common multiple of 4 and 6 is 12.
- Convert \(-\frac{3}{4}r\) to a fraction with a denominator of 12:
\(-\frac{3}{4} = -\frac{3 \times 3}{4 \times 3} = -\frac{9}{12}\)
- Convert \(-\frac{5}{6}r\) to a fraction with a denominator of 12:
\(-\frac{5}{6} = -\frac{5 \times 2}{6 \times 2} = -\frac{10}{12}\)
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Now combine the \(r\) terms:
\(-\frac{9}{12}r - \frac{10}{12}r = -\frac{9 + 10}{12}r = -\frac{19}{12}r\)
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Put it all together:
The complete simplified expression is:
\(-\frac{19}{12}r - 3\)
So, the simplified form of the given expression is:
\[ -\frac{19}{12}r - 3 \]