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104x 4 +83 X 5) -Sx 3 = 8 x 100+ 36:9

Răspuns :

Răspuns:

(104x 4 +83 X 5) -Sx 3 = 8 x 100+ 36:9

(416+415)-s X3=800+4

831-sx3=804

sx3=831-804

sx3=27

s=27:3

s=9