I need recommendations on weight lifting equipments?

I want to buy an exercise equipment so that I can build muscles and gain more strength. I need a recommendation on which one to buy. I don't have a lot of money. I just need one to keep me going in college.

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Portable ULTRASONIC CAVITATION 40KHZ SONIC SLIMMING MACHINE WEIGHT LOSS LIFTING    US $290.00

New TKO ULTIMATE ANKLE STRAP Cable Machine Attachment Weight Lifting Gym Fitness    US $11.95

Squat Shoulder Press Rack Weight Lifting Machine w Bench    US $199.99