The value of the expression 5 - f is 11.
An expression, often known as a mathematical expression, is a finite collection of symbols that are well-formed in accordance with context-dependent principles.
A variable is a symbol and placeholder for any mathematical object. In particular, a variable may represent a vector, a number, a function, a matrix, the argument of a function, a set, or an element of a set.
We have the value of the following variables,
f = - 6,
g = 7 and,
h = 9
Now consider the expression 5 - f,
Substituting the value of f in the expression we get,
5 - f = 5 - ( - 6 )
5 - f = 5 + 6
5 - f = 11
Therefore, the value of 5 - f is 11.
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