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What is the solution to 8=5k+3?

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neshia2008 | eNotes Newbie

Posted October 27, 2013 at 4:58 PM via web

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What is the solution to 8=5k+3?

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tiburtius | High School Teacher | (Level 3) Associate Educator

Posted October 27, 2013 at 5:20 PM (Answer #2)

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`8=5k+3` Subtract 3 from both sides.

`5=5k` Divide both sides by 5.

`k=1` <--Your solution

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baxthum8 | High School Teacher | (Level 3) Associate Educator

Posted October 27, 2013 at 7:07 PM (Answer #3)

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Solve `8=5k+3` .

In orderto solve for k we must isolate the variable.  Therefore, we must "undo" +3 first, by subtracting 3 from both sides.

`8 - 3 = 5k + 3 - 3`

`5 = 5k + 0`

`5 = 5k`

Now we must divide both sides by 5 to undo the multiplication of 5 to k.

`5/5 = (5k) /5`

`1 = k`

Therefore, the  solution to `8 = 5k + 3` is `k = 1` .

Check---------------

Substitute 1 for k into original equation.

`8 = 5(1) + 3`

`8 = 5 + 3`

`8=8`

Since this is true, the solution checks.

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levvy | eNoter

Posted October 30, 2013 at 5:34 AM (Answer #4)

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8=5k+3

first subtrack 3 from both sides

8-3=5k

5=5k

then divide 5 by both sides

5/5=k

k=1

and k=1 is the solution

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xelina | Student , Grade 12 | eNoter

Posted October 30, 2013 at 10:20 AM (Answer #5)

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8 =5k+3

5k=8-3

   =5

k =5/5

   =1

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atyourservice | Student , Grade 10 | eNoter

Posted February 24, 2014 at 10:24 PM (Answer #6)

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 8=5k+3    minus 3 on both sides

8-3=5k+3-3

5=5k   divide by 5

`5/5 = (5k)/5`

1=k

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