SOLUTION: I don't know how to write an equation for: jung spent a quarter of his money on a new shirt. He then gave a donation to charity of $3 and deposited half of the remaining money i

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Question 891806: I don't know how to write an equation for:
jung spent a quarter of his money on a new shirt. He then gave a donation to charity of $3 and deposited half of the remaining money into his bank. if he is left with $15, how much did he start with?
Thanks
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
He started with x money.

After buying the shirt, he has 3x%2F4; and then gave $3 to charity, now having 3x%2F4-3.

%283x%2F4-3%29%2F2 goes into the bank.
%283x%2F4-3%29-%281%2F2%29%283x%2F4-3%29=15, what he has now after the shirt, the charity, the bank deposit.
Solve for x.

%283x%2F4-3%29%281-1%2F2%29=15
%283x%2F4-3%29%2F2=15
3x%2F4-3=30
3x-4%2A3=4%2A30
3x-12=120
3x=132
x=132%2F3
highlight%28x=44%29, his initial amount.