Question

How do you evaluate `4( a + b - c)` given a= 2, b= 7, and c= 4?

Answer 1

`=20`

Explanation:

The expression provided is :
`4 ( a + b - c)`

Data provided is:
`color(blue)(a = 2) , color(green)(b = 7) , color(purple)( c= 4`
Substituting the values for the variables in the expression.

`4 ( a + b - c) = 4 ( color(blue)( 2) + color(green)( 7) -color(purple)( 4))`

`= 4 ( 9 - 4)`

`= 4 (5)`

`=20`