Hey There!
The answer to your problem is 
<u>Subtract 2x from both sides</u>
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<u>Multiply both sides by 4/(-5)</u>
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x
Answer:
6x + 4 - 1/100 = 77.5
Step-by-step explanation:
Inc shipping all shirts 77.49
Shirt individual cost = 12.25
We find the division first = 77.49-3.99 = 73.5 = 73 1/2
Then we divide 73.5 / 12.25 = 6
Then we have our equation
6x + 4 - 1/100 = 77.5
B would be the answer for sure
Their both the answer hope this helps