Isolate u using subtraction: u + 4 < 10. Which operation should we use to isolate u?Since 4 is added to u in u + 4 < 10, subtraction should be used to isolate u.\langle u + 4\rangle - 4 < 10 - 4
Perform subtraction to solve: Perform the subtraction to solve for u.u + 4 - 4 < 10 - 4u < 6
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