Question

Simply
`(4a + b - 2c) - (3a + 2b - c)`the expression

Answer 1

we have

(4a + b - 2c) - (3a + 2b - c)

step 1

remove the parenthesis

4a+b-2c-3a-2b+c

step 2

Combine like terms

a-b-c

therefore

the answer is

a-b-c