(9x^2-4)..........................
40 = n-.40n
40 =n(1-.4)
40 = n(.6
divide by .6 on each side
40/.6 =n
n=66 2/3
Answer:
Negative one
Step-by-step explanation:
Standard form is when you write out the number.
ex. 45 is forty-five
102 is one hundred two
Hope this helps!
-8n+7=31
-8n+7-7=31-7
-8n=31-7
-8n=24
-8n÷(-8)=24÷(-8)
n=24÷(-8)
n=-24÷8
n=-3
