If 9 cos theta - 5 sin theta = 4 cos theta + 7 sin theta, find the value of tan theta.
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9costheta - 5sintheta=4costheta+7sintheta
9costheta - 4costheta=7sintheta+5sintheeta
5costheta=12sintheta
5/12=sintheta/costheta
tantheta=5/12
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