Answer:
n=11
Step-by-step explanation:
19+n=30
n=30-19
31 degrees
P = 3x + 3 - x²
x=-7
Subtract 5 from both sides.
−x=12−5
Subtract 5 from 12 to get 7.
−x=7
Multiply both sides by −1.
x=−7
-29
plz brainliestt
