How do you write an inequality and solve given "a number decreased by 8 is less than 21"?

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How do you write an inequality and solve given &quot;a number decreased by 8 is less than 21&quot;?

Lavizzariym · Accepted Answer

Step 1First, write the inequality.Let&#039;s call the number we will be solving for n.Therefore &quot;a number decreased by 8&quot; can be written as:      n    -    8  &quot;is less than 21&quot; can be written as:      &amp;lt;    21  Putting this altogether gives:      n    -    8    &amp;lt;    21  To solve for n add 8 to each side of the inequality which will solve for n while keeping the inequality balanced:      n    -    8    +                  8              &amp;lt;    21    +                  8                  n    -    0    &amp;lt;    29        n    &amp;lt;    29

How do you write an inequality and solve given "a

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