sí a un número racional x se le suma el 20% de ese número y al resultado se le resta el 20% del resultado, se obtiene nuevamente el número x

Find the mistake made in the steps to solve the equation below. a. the justification for step 2 is incorrect and should be the subtraction property of equality. b. step 2 is incorrect and should be . c. step 3 is incorrect and should be . d. the justification for step 3 is incorrect and should be the multiplication property of equality.