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Question
Identify the operations (addition, subtraction, division, multiplication) in forming the following expression and tell how the expression have been formed.
z + 1, z − 1, y + 17, y − 17
Solution
Addition as 1 is added to z.
Subtraction as 1 is subtracted from z.
Addition as 17 is added to y.
Subtraction as 17 is subtracted from y.
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