Step-by-step explanation:
move the 27 to the other side of the equation like this

use this equation and substitute it into the y value of the first equation
The answer to the equation is approximately 536.91
Degree is 3 and total of two terms.
Answer:
a=2
Step-by-step explanation:
3(3a+2)+6=30
9a+6+6=30
9a+12=30
9a=18
a=2