Hi, it is very simples.
Look :
2a - 9 = -85
Pass the term -9 to the left side of equation, but changing the sinal
2a = -85 + 9
Sum -85 +9 = -76
Then,
2a = -76
Nos, pass the 2 dividing -76
a = -76 ÷ 2
a = - 38
This is the answer to the yours question
What I am not sure what you are asking for me to answer
4 is just multiplying 720 by 16. i like ur nails btw yo
Answer:
y=3/3x+3/2
Step-by-step explanation:
(-5,-6)(1,3)
x1y1 x2y2
y2-y1/x2-x1
m=3/2
b=3/2