Let unknown number be x.
Given,
7x - 8 = 3x + 4
4x = 12
x = 3
Hence, the number is 3.
Answer:

Step-by-step explanation:
<u>Step 1: Divide both sides by -8</u>
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Answer: 
Answer:one solution
Step-by-step explanation:
x=-3, TeR
Answer:
Step-by-step explanation:
The question doesn't make sense. There is no way receipts could have totaled $8008.50. The most that could have been taken is if all 430 of the patrons were adults. That gives 430×2.25 = $967.50
Combine like terms to get 2x + 6x which is 8x and 3y + 9y which is 12y so the simplified answer is 8x + 12y