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-7n-15≤21. find n
❖ Add 15 to both sides:-
-7n≤21+15
-7n≤36
❖ Now divide by -7 on both sides:-
n≥-5.14 or
n≥-5
The inequality sign changed because we divided both sides by a negative number.
<h3>Good luck.</h3>- - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - -