Question

Evaluate the expression 12- x when x=8​

Answer 1

`given \: that \ :`

`x = 8`

`then \:12 - x \: will \: be \: :`

`12 - 8`

`= 4`

`∴ \: 12 - 8= 4`

Answer 2

The result of 12-x when x=8, is 4

Explanation:

Numerical Evaluation

Evaluate an algebraic expression means substituting the variables present in the expression by their respective numerical values, operate and report the result.

The given expression is

12 - x

Substituting x = 8, we get:

12 - 8 = 4

The result of 12-x when x=8, is 4