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State what the variable represents in the equation.
The question should be what is the variable in the following expression? (n + 5) The answer: (n) represents the variable. See: Variable(English definition) then look up the Math/Algebra definition.
no. It is generally known that a single variable represents 1 of that variable.
A variable
Identity property of addition states that the sum of zero and any number or variable is the number or variable itself. 3 + 0 = 3