Describe and correct the error in solving the equations below​

9514 1404 393

  19. wrong multiplier was used, and used incorrectly; x = -324

  20. wrong multiplier was used, and used incorrectly; y = 5

Step-by-step explanation:

In each case, the equation was multiplied by the coefficient of the variable, instead of divided. In each case, the square of the coefficient was evaluated incorrectly (so the error wasn't noticed).

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19) As described above.

  (-36)(9) = (x/9)(9)

  -324 = x

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20) In addition to the errors described above, the variable was changed from y to x.

  15/3 = (3y)/3

  5 = y