Question

How do you find `a - 2b + 3c` diminished by `a - 2b - 3c + d`?

Answer 1

`(a-2b+3c)-(a-2b-3c+d) = 6c-d`

Explanation:

`(a-2b+3c)-(a-2b-3c+d)`

`=a-2b+3c-a+2b+3c-d`

`=a-a-2b+2b+3c+3c-d`

`=(1-1)a+(-2+2)b+(3+3)c-d`

`=6c-d`