Answer:
X=9
Step-by-step explanation:
x=-4+13=9
Answer:
120
Step-by-step explanation:
alls you do is plug in the numbers its not hard sweetie
Answer:
-3n + 18
Step-by-step explanation:
an = dn + (a - d)
The difference is -3.
The first term is 15.
an = -3n + (15- (-3))
an = -3n + 15 + 3
an = -3n + 18