Answer:
Step-by-step explanation:
let the number is x
3x+4=-8
3x=-8-4
3x=-12
x=-4
Answer:
12, 4, 24, 30, and 14 are the answers
Answer:
Expand 
Step-by-step explanation:

Apply the distributive law: 


Apply minus - plus rules:


Multiply the numbers: 

Hope this helps! If so, may I get Brainliest and a Thanks?
Thank you, have a good one! =)
In the triangle sum theorem, the corollary is that the triangle <span>can include only one 90 degree angle or one obtuse angle.</span>
For number one
S: supplement.
R: angle1+angle8 =18
#2
S: supplement
R: angle 3+ angle 6=180