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metoda mersului invers

Metoda Mersului Invers class=

Răspuns :

k)  5 - ║ 90+ ( 20-135:a x 3) -54║ x6= 251 
    ║ 90+ ( 20-135:a x 3) -54 ║ x6 =  251-5
  ║ 90+ ( 20-135:a x 3) -54║ x6 =  246:6
90+(20-135:ax3)-54= 41
90+(20-135:ax3)= 41+54
90+(20-135:ax3)= 95-90
20-135:ax3=20-5
135:ax3=15
135:a=15:3
135:a=5
a=135:5
a=27