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Ajutarima nr 4 test 1 varog

Ajutarima Nr 4 Test 1 Varog class=

Răspuns :

Salut,

[tex]\dfrac{6}{x+1}=\dfrac{15}{2x+6}\Rightarrow 6(2x+6)=15(x+1),\\\\deci\ 12x+36=15x+15,\ adic\breve{a}\ 3x=21,\ x=7.[/tex]

Green eyes.