Respuesta :

rjdellner

Answer:

30 ≥

Step-by-step explanation:

6 ≥ 1/2x + 21

-6 -6

1/2x ≥ 15

15/1 x 2/1 = 30/1

answer: 30

you keep the sign the same because you only flip the sign if you multiply or divide by a negative number

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