# EVALUATE VARIABLE EXPRESSIONS INVOLVING INTEGERS

## About "Evaluate variable expression involving integers"

Evaluating variable expression involving integers :

To evaluate variable expression involving integers, we have to apply the value of the variable in the given question and simplify.

Let us see some examples based on the above concept.

## Evaluate variable expressions involving integers - Examples

Example 1 :

Evaluate the expression for x = 2

5 + x

Solution :

To evaluate the above expression, we need to apply the value "2" instead of x in the above expression.

=  5 + 2

=  7

Hence the value of the algebraic expression is 7.

Example 2 :

Evaluate the expression for x = -1

-x + 5

Solution :

To evaluate the above expression, we need to apply the value "-1" instead of x in the above expression.

=  -(-1) + 5

=  1 + 5

=  6

Hence the value of the algebraic expression is 6.

Example 3 :

Evaluate the expression for p = 3

p - 6

Solution :

To evaluate the above expression, we need to apply the value "3" instead of x in the above expression.

=  3 - 6

=  -3

Hence the value of the algebraic expression is -3.

Example 4 :

Evaluate the expression for r = -2

-r + 5

Solution :

To evaluate the above expression, we need to apply the value "-2" instead of r in the above expression.

=  -(-2) + 5

=  2 + 5

=  7

Hence the value of the algebraic expression is 7.

Example 5 :

Evaluate the expression for m = 0

m - 5

Solution :

To evaluate the above expression, we need to apply the value "0" instead of m in the above expression.

=  0 - 5

=  -5

Hence the value of the algebraic expression is -5.

Example 6 :

Evaluate the expression for t = -4

5t - 3

Solution :

To evaluate the above expression, we need to apply the value "-4" instead of "t" in the above expression.

=  5(-4) - 3

=  -20 - 3

=  -23

Hence the value of the algebraic expression is -23.

After having gone through the stuff given above, we hope that the students would have understood "Evaluate variable expressions involving integers".

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