Respuesta :

Answer:

x = 20.

Step-by-step explanation:

1/2x + 40 = 50

1/2x + 40 - 40 = 50 - 40

1/2x = 10

1/2x * 2 = 10 * 2

x = 20

Answer:

x=20

Step-by-step explanation:

50-40= 10 and 10 x 2 = 20

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