Question

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

Answer 1

Answer:−9a+10b−23

Step-by-step 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

Answer 2

Answer:

$-9a+10b-23$

Step-by-step explanation:

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

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

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

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

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

$-9z+10b-23$