SOLUTION: Suppose you go to a concert and purchase 3 identical T-shirts and a hat. The hat costs $21 and you spend $60 in all. How much does each T-shirt cost? I need the equation

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Question 1016006: Suppose you go to a concert and purchase 3 identical T-shirts and a hat. The hat costs $21 and you spend $60 in all. How much does each T-shirt cost?

I need the equation for this. We've been working on distributive property and I may sound stupid for this because it's probably really simple, but I can't figure out the equation and I need help. I know how to do the work, all I need is the equation. Please try to respond as soon as possible.
Found 2 solutions by ikleyn, MathTherapy:
Answer by ikleyn(52775) About Me  (Show Source):
You can put this solution on YOUR website!
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Suppose you go to a concert and purchase 3 identical T-shirts and a hat. The hat costs $21 and you spend $60 in all. How much does each T-shirt cost?

I need the equation for this. We've been working on distributive property and I may sound stupid for this because it's probably really simple, but I can't figure out the equation and I need help. I know how to do the work, all I need is the equation. Please try to respond as soon as possible.
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T-shirt_cost = %2860+-+21%29%2F3 = 39%2F3 = 13 dollars.


Answer by MathTherapy(10551) About Me  (Show Source):
You can put this solution on YOUR website!

Suppose you go to a concert and purchase 3 identical T-shirts and a hat. The hat costs $21 and you spend $60 in all. How much does each T-shirt cost?

I need the equation for this. We've been working on distributive property and I may sound stupid for this because it's probably really simple, but I can't figure out the equation and I need help. I know how to do the work, all I need is the equation. Please try to respond as soon as possible. 
Let the cost of each T-shirt be T

After purchasing the hat, you're left with $39 (60 - 21)

Since you bought 3 T-shirts, then you paid 3T for them

You also spent the left-over amount ($39) on the T-shirts

We then have the equation: highlight%28highlight_green%28highlight%283T+=+39%29%29%29