Answer:
D) -20 + 4 is the answer.
Step-by-step explanation:
1) Record the terms .
[tex]4 - 20[/tex]
2) Use this rule: a - b = -(b - a)
[tex] - (20 - 4)[/tex]
3) Use algorithm method.
(see the attached picture)
4) After simplifying, we have:
[tex] -(20 - 4) = - 16[/tex]
5) therefor, -20 + 4 = -16
[tex] - 16[/tex]
