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Archy [21]
2 years ago
11

13 - r < 82 PLA I NEED THIS

Mathematics
2 answers:
SOVA2 [1]2 years ago
8 0

        \rule{50}{1}\large\textsf{\textbf{\underline{Question:-}}}\rule{50}{1}

    <em>13-r<82</em>

<em />

<em>       </em>\rule{50}{1}\large\blue\textsf{\textbf{\underline{Answer and how to solve:-}}}\rule{50}{1}

   First of all, we need to isolate r (get r by itself). What I Mean by that is

       We need to get r by itself on one side of the inequality.

      So it should look something like this:-

     r<___

So r is all by itself.

How will we get r by itself? Well, First of all, we need to subtract 13 on both sides:-

\longmapsto\bf{-r < 82-13

Simplifying,

\longmapsto\bf{-r < 69}

Now, is r by itself? Nopes, There's also a minus sign next to it , which indicates that r is multiplied by -1.

So we do the opposite operation and divide both sides by -1:-

(watch what happens)

\longmapsto\bf{r > -69}

The <u>inequality sign changed from </u>"less than" to "greater than".

This happened because we divided by a negative number on both sides.

<h3>Good luck with your studies. \ddot\smile</h3>

#TogetherWeGoFar

\rule{300}{1}

maria [59]2 years ago
5 0

Answer:

r > -69

Step-by-step explanation:

13 - r < 82

subtract 13 from both sides

13 - r - 13 < 82 - 13

- r < 69

to flip the inequality sign, multiply both side by -1 to make r positive:

- r (-1) < 69 (-1)

r > -69

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