Answer:

Step-by-step explanation:
Given

Required:
Simplify
We start by opening the bracket


Collect Like Terms

Hence, the equivalent expression is 
Y=mx+b
y= -2x+8
Rearranging gives you the answer of
2x +y - 8 = 0
Answer:
8
Step-by-step explanation:
5-(-3)=8
|8|=8
Answer:13/12
Step-by-step explanation:
2/3=8/12. 1 3/4=7/4=21/12. 21/12-8/12=13/12