Question

(4m–5)–(–8m–5) SUBTRACT

Answer 1

12m

Explanation:

(4m–5)–(–8m–5)

= 4m-5 + 8m + 5

= 12m

Answer 2

`12m`

Explanation:

If we have the expression
`(4m-5)-(-8m-5)`, we need to distribute. This is the same as
`1(4m - 5) -1(8m -5)`

`4m - 5 \cdot 1 = 4m - 5`, so we can leave that be. However, we now need to multiply
`-8m-5` by -1. Doing so gets us
`8m + 5`.

Together, we get
`4m - 5 + 8m + 5`. Combining like terms, we have
`12m - 5 + 5 = 12m`.

Hope this helped!