Question

D) Rezolvati prin metoda mesului invers:
938+194+x=1500

x+1785-564=3050

x-87-732-29=358

x-624+127=905

Answer 1

938+194+x=1500
194+x=1500-938
194+x=562
x=562-194
x=368

x+1785-564=3050
x+1785=3050+564
x+1785=3614
x=3614-1785
x=1829
  
x-87-732-29=358
x-87-732=358+29
x-87-732=387
x-87=387+732
x-87=1119
x=1119+87
x=1206

x-624+127=905
x-624=905-127
x-624=778
x=778+624
x=1402