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Math (Linear Systems)

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28 N + T2 sin 12 = T1 sin 42
T2 cos 12 = T1 cos 42
T2 sin 12 + T3 sin 54 = W2
T2 cos 12 = T3 cos 54
Im solving for T1,2,3 and W2
I just cant seem to get the system to work

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