Question

Find the value of the expression 2x−12)+(1/2xy−10) for x=8 and y=2

Answer 1

`(2(8)-12)+( (1)/(2)(8)(2)-10)`

You can use PEMDAS to solve from there.


`(16-12)+( (1)/(2)(16)-10) 4+(-2)`

What does 4 plus negative 2 equal?...


`4+(-2)=2`

The answer is 2 :)