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12x+8=16x-20
8+20=16x-12x
28=4x
28/4=x
7=x
hay 7 sobrinos,los caramelos son:
x=7
12x+8=16x-20
12(7)+8=16(7)-20
84+8=112-20
92=92
hay 92 caramelos y 7 niños
y la diferencia es:
92-7=85
la diferencia es 85.