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Question 1
Solve the following equation: {[(5×17-4)÷9]×6-3}÷3

Question 2
Solve for x: 5x-4+3+2x-x+2-3x=6x+2-3-3x+2-6+x

Question 3
Find the domain of the following expression: √(x+3)

Question 4
Jenny bought 63 watermelons from the store. Then Albert went and bought 81 watermelons. Jenny saw that Albert had more watermelons than she did, so she stole ⅓ of Albert's watermelons. Albert knew that Jenny did this however, so he went and stole ⅓ of Jenny's watermelons. How many watermelons did Albert gain from this civilized transaction?