Answer:
-i
Step-by-step explanation:
i = √-1, i² = -1, i^4 = 1
i^15 = i^4 • i^4 • i^4 • i² • i
= 1 • 1 • 1 • -1 • i
= -i
4b + 22 = 5 (b + 4) - 1 (remove the parantheses)
4b + 22 = 5b + 20 - 1 (calculate)
4b + 22 = 5b + 19 (move the terms)
4b - 5b = 19 - 22 (collect like terms and calculate)
-b = -3 (change the signs)
<em>b = 3</em>
Answer:
Step-by-step explanation:
Step 1: Find the total fraction of raisins he gave to his brothers
=
Step 2: Find the lowest common multiple(Lcm) of 6 and 4
Lcm of 6 and 4 = 12
Step 3: Add the fractions
= 
= 
Step 4: To find the fraction that he kept, you will subtract the total fractions he gave his brothers from 1.

Final answer
The fraction that he kept = 
-6y=6-8x
y=6-8x/-6
y=-4/3x-1