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Stiind ca 3a+6b=18,aflati a+2b

Răspuns :

[tex]3a+6b=18 [/tex]

[tex]3(a+2b)=18 [/tex]

[tex]a+2b= \frac{18}{3} [/tex]

[tex]a+2b=6[/tex]
3(a + 2b) = 18
a + 2b = 18 : 3
a + 2b = 6