Where x = the amount of time that has passed in years.
12 = 2/3(x - 3)
<em><u>Distributive property.</u></em>
12 = 2/3x - 2
<em><u>Add 2 to both sides.</u></em>
14 = 2/3x
<em><u>Multiply both sides by 3.</u></em>
42 = 2x
<em><u>Divide both sides by 2.</u></em>
21 = x
The value of x is equal to 21.
Answer:
The sum of the first 41 terms is 6232
Step-by-step explanation:
The sequence is an arithmetic progression with:
-- first term
--- common difference (this is calculated by 19 - 12 or 26 -19)
Required
The sum of the first 41 terms
This is calculated as:
In this case:
So: