Answer:
n = 14
Step-by-step explanation:
7n +9 = -1+6(n+4)
Distribute
7n+9 = -1 +6n+24
Combine like terms
7n +9 = 6n +23
Subtract 6n from each side
7n -6n+9 = 6n-6n +23
n+9 = 23
Subtract 9 from each side
n+9-9=23-9
n = 14
Answer:
sum of twice a number and three is 21
2x + 3 = 21
x = 9
Answer:
The answer should be 1500g I think.
Exaxt form
-5.45*10^4
Decimal Form
-54500