**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.

**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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