Answer:
Substitution
Step-by-step explanation:
Answer:
z+7
Step-by-step explanation:
use PEMDAS!
1. divide 4/4, which is 1. (z-1+8)
2. combine like terms! -1 and 8 are like terms, so add them together. (z+7)
3. after that, you have the answer!! z+7!!
Answer:
c=-5
Step-by-step explanation:
2c-3=12-2c+7c
2c-3=12+5c
2c-5c-3=12
-3c-3=12
-3c=12+3
-3c=15
c=15/-3
c=-5
Answer:
x+11
Step-by-step explanation:
