Question

4 corners again
-9a + 3b - a + 7b - 13 + a - 10
Sorry for the questions pls help

Answer 1

`-9a+10b-23`

Explanation:

`-9a+3b-a+7b-13+a-10`

`-9a-a+a+3b+7b-13-10`

`(-9a-a+a)+3b+7b-13-10`

`-9a+(3b+7b)-13-10`

`-9a+10b-(13+10)`

`-9z+10b-23`

Answer 2

Answer:−9a+10b−23

Explanation:−9a+3b−a+7b−13+a−10

Combine −9a and −a to get −10a.

−10a+3b+7b−13+a−10

Combine 3b and 7b to get 10b.

−10a+10b−13+a−10

Combine −10a and a to get −9a.

−9a+10b−13−10

Subtract 10 from −13 to get −23.

−9a+10b−23