Respuesta :

A. c+2=c+3
Never. C is a constant value. Adding different values to a constant value will never be equal.

B. 4+2p=4-2p
Sometimes. If p=0 this is true, but not in any other circumstances.

C.2(x+5)+1=2x+11
2x+10+1=2x+11
2x+11=2x+11
Always

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