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a *(b+5)=336
a*b=301


Răspuns :

a × b + 5a = 336
a × b = 301
301 + 5a = 336
5a = 336 - 301
5a = 35
a = 35 : 5
a = 7
b = ?

7b = 301
b = 301 : 7   [tex]=\ \textgreater \ a * b = 301[/tex]
b = 43
ab+5a=336
ab=301
301+5a=336
5a=336-301
5a=35
a=35:5
a=7