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[tex] \frac{4x+1}{10} [/tex] - [tex] \frac{2x-1}{5} [/tex] = 3x

Răspuns :

[tex]\displaystyle \frac{4x+1}{10} - \frac{2x-1}{5} =3x \\ 4x+1-2(2x-1)=10 \cdot 3x \\ 4x+1-4x+2=30x \\ 4x-4x-30x=-1-2 \\ -30x=-3 \\ x= \frac{3}{30} \Rightarrow x= \frac{1}{10} [/tex]