SOLUTION: I need help solving this word problem into an equation: Garland put 2b + 3 dollars in the bank in the first week. The following week he doubled the first week's savings and put th

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: I need help solving this word problem into an equation: Garland put 2b + 3 dollars in the bank in the first week. The following week he doubled the first week's savings and put th      Log On


   

Question 1059628: I need help solving this word problem into an equation: Garland put 2b + 3 dollars in the bank in the first week. The following week he doubled the first week's savings and put that amount in the bank. The next week he doubled what was in the bank and put that amount in the bank. If he know has $477 dollars in the bank, how much did he put in the bank?
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Initial quantity in the bank, 2b+3.

After a week: 2%282b%2B3%29
After another week: 2%2A2%282b%2B3%29.

Knows 4%282b%2B3%29=477; solve for b and evaluate 2b%2B3.

Alternatively, since the question asks for 2b+3 and you have an equation already, you can divide both sides by 4 and compute.

2b%2B3=477%2F4

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!
I need help solving this word problem into an equation: Garland put 2b + 3 dollars in the bank in the first week. The following week he doubled the first week's savings and put that amount in the bank. The next week he doubled what was in the bank and put that amount in the bank. If he know has $477 dollars in the bank, how much did he put in the bank?
Equation you need: 

You should get: 

Nothing COMPLEX.....very, very simple!