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x + 7/2 - 2= 14
2x + 7 - 4= 28
2x = 25
x = 25/2
x = 14 - 3,5 + 2
x = 10,5 + 2
x = 12,5
VERIFICAMOS
X + 3,5 - 2 = 14
12,5 + 3,5 - 2 = 14
16 - 2 = 14