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Olivia's work and solution to the equation -6x + 11=43 is shown. Identify each error in Olivia,s work ad epxplian what she would have done instead.
-6x + 11=43
+11 +11
-6x = 54
-6x/6 = 54/6
X = 9

Respuesta :

nobillionaireNobley
The correct solution algorithm for the equation -6x + 11 = 43 is give as follows:

-6x + 11 = 43

Subtract 11 from both sides to get:
-6x + 11 - 11 = 43 - 11
-6x = 32

Divide both sides by -6 to get:
-6x / -6 = 32 / -6
x = -5.33


Given Olivia's work as follows:

-6x + 11= 43
+11 +11
-6x = 54
-6x/6 = 54/6
X = 9

Therefore, Olivia's errors are:
1) She added 11 instead of subtracting 11.
2) She divided by 6 instead of -6.

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