Respuesta :

Answer:

B: 2.8

Merry Christmas

Answer:

2.8

Step-by-step explanation:

12x - 5 = 7x + 9

Subtract 7x from both sides;

5x - 5 = 9

Add 5 to both sides;

5x = 14

Divide both sides by 5;

x = 2.8

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