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afla nr a si b stiind ca a+b=560 si b/a=4​

Răspuns :

Răspuns:

a+b=560

a=560-b

inlocuim:

b/560-b=4

b:(560-b)=4

560-b=4×b

560=4b+b

5b=560

b=560:5

b=112

a+112=560

a=560-112

a=448

succes!!!

Răspuns: a=112 ; b=448

a+b=560 b:a=4 => b=4a a+4a=560=5a=560 => a=560:5=112 => b=112•4=448