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Evaluate the expression for r=−7r = -7.\newliner+18=r + 18 = _____

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Full solution

Q. Evaluate the expression for r=−7r = -7.\newliner+18=r + 18 = _____
  1. Substitute r=−7r = -7: r+18r + 18\newlineSelect the expression after substituting r=−7r = -7.\newlineSubstitute −7-7 for rr in r+18r + 18.\newlineExpression: −7+18-7 + 18
  2. Evaluate expression: Evaluate −7+18-7 + 18. −7+18=11-7 + 18 = 11

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