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a fost răspuns

aflati nr necunoscut :
a) (b-416:4+2)x(5+3)=2448
b) (286+b)-(387:9)+3=2185-795 varog e urgen si cine o rezolva primul dintre 2 ia coronita

Răspuns :

Capsunica35
(b-416:4+2)x(5+3)=2448
(b-104+2)x8=2448
8b-848=2448
8b=2448+848
b=3296:8
b=412

(286+b)-(387:9)+3=2185-795
(286+b)-43+3=1390
b=1390-246
b=1144
Maryanabel3579
a) (b-416:4+2)x(5+3)=2448
   (b-104+2)x8=2448
   b-106=2448:8
   b-106=306
    b=306+106
    b=412
 
b) (286+b)-(387:9)+3=2185-795
    (286+b)-43+3=1390
     286+b-40=1390
     b+246=1390
   b=1390-246
    b=1144

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