Answer:
3x and 2x can be combined bc it has ex at the end.
1 and 2x cannot be combined bc 1 doesn't have an x.
1 and -5 can be combined
hope it helps you!!!!!!!!!!!!
Answer:
Step-by-step explanation:
3
+x-3=
- 5x
combine like terms
3
+
= 4
x -5x = -4x
then combine 4
and -4x
Answer:
a=2
b=6
Step-by-step explanation:
Assuming a uniform distribution and that a ≤ x ≤ b, if f(x) = 1/4, then:

If P(X > 4) = 1/2, then:

The values for a and b are, respectively, 2 and 6.
The scale faction is 20 to 1 hope that helps