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Evaluate the expression for z=−18z = -18.\newline15+z=15 + z = _____

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Full solution

Q. Evaluate the expression for z=−18z = -18.\newline15+z=15 + z = _____
  1. Write Expression with Substitution: Write 15+z15 + z after substituting z=−18z = -18.\newlineSubstitute −18-18 for zz in 15+z15 + z.\newline15+(−18)15 + (-18)
  2. Substitute Value for Variable: Evaluate 15+(−18)15 + (-18). \newline15+(−18)15 + (-18)\newline=15−18= 15 - 18\newline=−3= -3

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