Answer: 
Step-by-step explanation:
Given the equation 
you need to solve for the variable "b".
You need to apply Distributive property on both sides of the equation:
Now you need to add 21 to both sides of the equation:
Subtract 
from both sides:
And finally, you can divide both sides of the equation by 18:
Answer:
x = 9
Step-by-step explanation:
take -6 to the other side so you add it to 30 = 36
equation is now 4x = 36
divide 4/4 and 36/4
x = 9
Answer:
10
Step-by-step explanation:
Answers
1. B) 31
2. B) 4
3. A) 15
4. D) 24
5. A) 3
MARK BRAINLEIST PLS THIS TOOK A LOT OF TIME
Y = -2m -1 is your equation
