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Evaluate the expression for r=−7.9r = -7.9 and s=−2s = -2.\newlineWrite your answer as a decimal or whole number.\newliners−s=rs - s = _____

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Q. Evaluate the expression for r=−7.9r = -7.9 and s=−2s = -2.\newlineWrite your answer as a decimal or whole number.\newliners−s=rs - s = _____
  1. Identify Expression: Identify the expression to be evaluated.\newlineThe expression given is rs−srs - s. We need to substitute r=−7.9r = -7.9 and s=−2s = -2 into this expression.
  2. Substitute Values: Substitute the values of rr and ss into the expression.\newlineSubstitute r=−7.9r = -7.9 and s=−2s = -2 into the expression rs−srs - s to get (−7.9)(−2)−(−2)(-7.9)(-2) - (-2).
  3. Perform Multiplication: Perform the multiplication.\newlineMultiply –7.9–7.9 by –2–2. The product of two negative numbers is positive, so (–7.9)(–2)=15.8(–7.9)(–2) = 15.8.
  4. Simplify Subtraction: Simplify the subtraction.\newlineNow we have 15.8−(−2)15.8 - (-2). Subtracting a negative is the same as adding a positive, so 15.8−(−2)=15.8+215.8 - (-2) = 15.8 + 2.
  5. Perform Addition: Perform the addition.\newlineAdd 15.815.8 and 22 to get 17.817.8.

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