Question

Compare and contrast the expressions $2+x\text{and}2+3$.

Short answer

The value of the unknown variable x is3.

Step-by-step solution

Step 1. Apply the concept of Variable.

In any expression or equation, the variable is an unknown quantity. It may be any alphabet or any special symbol.

Step 2. Example for the variable.

In the expression $2x+3$, the unknown quantity is x. So, the variable in this expression is x. 2 and 3 are constants values.

Step 3. Identify the variable.

In the given expressions $2+x\text{and}2+3$, observe that both the expression has 2 as a first term followed by a plus sign. While in the first expression the second term is x and in the second expression the second term is 3.

So, on comparing the expressions, it is clear that the value of x is equal to 3.