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Evaluate the expression for r=4r = 4.\newlineWrite your answer in simplest form.\newliner−5−r+7=\frac{r - 5}{-r + 7} = __

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Full solution

Q. Evaluate the expression for r=4r = 4.\newlineWrite your answer in simplest form.\newliner−5−r+7=\frac{r - 5}{-r + 7} = __
  1. Identify Expression: Identify the expression after substituting r=4r = 4 Substitute 44 for rr in r−5−r+7\frac{r - 5}{-r + 7}. 4−5−4+7\frac{4 - 5}{-4 + 7}
  2. Substitute and Simplify: Evaluate 4−54 - 5\newline4−5=−14 - 5 = -1\newlineNumerator: −1-1
  3. Evaluate Numerator: Evaluate −4+7-4 + 7−4+7=3-4 + 7 = 3Denominator: 33
  4. Evaluate Denominator: −13-\frac{1}{3}\newlineThe fraction is already in its simplest form.\newlineFinal expression: −13-\frac{1}{3}

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