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Afla valoarea lui a:35:a+29:a+105:7-415=600

Răspuns :

35:a+29:a+105:7-415=600
35:a+29:a+15=600+415
35:a+29:a+15=1015
35:a+29:a=1015-15
35:a+29:a=1000
swe mai poate scrie
35/a+29/a=1000
64/a=1000
64:a=1000
1000·a=64
a=64:1000
a=0,064