SondosC510343 SondosC510343

28-10-2022
Mathematics

contestada

identify the error the student made step 1 : 19-2k = 3k-1 +3k +3k _ _ step 2 : 19+k=-1 -19 -19 _ _ k = -20

Respuesta :

XenaW49239 XenaW49239

28-10-2022

Solution

We have the following equation:

19 -2k = 3k -1

+3k +3k

________________

19 +k = 6k-1

20 = 5k

k = 4

The error was because the student commit the following error:

3k + 3k = 6k

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