Respuesta :

Answer:

x=-13/2

Step-by-step explanation:

13 3/4=55/4

7 1/4=29/4

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55/4+x=29/4

x=29/4-55/4

x=-26/4

simplify

x=-13/2

Answer:

x=-6 1/2

Step-by-step explanation:

So C is right on edge