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daca a × (b+5) = 336 si a × b = 301,calculeaza pe a

Răspuns :

a*(b+5)=336
a*b=301
a*b+a*5=336
301+5a=336
5a=35
a=7
a plus (b plus 5 )=336 
a·b plus 5a =336
301 plus 5a=336
5a=336 minus 301 
5a =35
a= 35÷5
a=7