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Ajutor,aveti poza!
7(x+4,05)=3x+40,6


Ajutoraveti Poza7x4053x406 class=

Răspuns :

7x+28,35=3x+40,6
7x-3x=40,6-28,35
4x=12,25
x=3,0625
7x+28.35=3x+40.6
7x-3x=40.6-28.35
4x=12.25
x=3.0625
verificarea; 7(3.0625+4.05)=3×3.0625+40.6,
                   7×71125=9.1875+40.6
                   49.7875=49.7875................