120/30=40-1=39
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C. X=9
First, you distribute the 6 to the x-3. You get 6x-18=3x+9 from that. Then, you add 18 on both sides giving you 6x=3x+27. After that, you subtract 3x on both sides giving you 3x=27. Last, you divide 3 on both sides giving you the final answer of x=9
The correct answer is 190
You have to multiply the number of people times the number of cookies they are each supposed to get
So, 28 x 3 = 84 cookies