Respuesta :

24nanjoshua

-3x + 2 = -7 (given)

-3x = -9 (correct)

-3x/3 = -9/3 (incorrect, correct if -3x/-3 = -9/-3)

x = -3 (incorrect, if -3x/3 then -x = -3 not x = -3. From -x = -3 we need to do -x/-1 and -3/-1 which would be x = 3)

jadon0506

Answer:

in step 3 we forgot the negative sign so it is x=3

Step-by-step explanation:

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