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iragen [17]
2 years ago
14

-7n - 15 ≥ 21? n ≥ -4 n ≥ 7.2 n ≤ -4 n ≤ 4

Mathematics
1 answer:
ollegr [7]2 years ago
7 0

               - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

\diamond\large\textsf{\textbf{Question:-}}}}

-7n-15≤21. find n

\diamond\large\textsf{\textbf{\underline{\underline{Answer and how to solve:-}}}}

 ❖ 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>

        - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - -

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