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(1000-d*2-25*4)impartit 6=143

Răspuns :

(1000-d*2-25*4) : 6=143
(1000-d*2-100) =143×6
1000-d*2-100 =858
1000-d*2=858+100
1000-d*2=958
d*2=1000-958
d*2=42
d=42×2
d=84
(1000-d*2-25*4):6=143
(1000-d*2-100):6 =143
1000-d*2-100=143*6
1000-d*2-100=858
1000-d*2=858+100
1000-d*2=958
d*2=1000-958
d*2=42
d=42*2
d=84
Super că te-am ajutat