Răspuns :
[tex] \frac{11}{10} x = 2(0.4 + 0.7) [/tex]
[tex] \frac{11}{10} x = 0.8 + 1.4[/tex]
[tex] \frac{11}{10} x = 2.2[/tex]
[tex]x = 2.2 \div \frac{11}{10} [/tex]
[tex]x = 2.2 \times \frac{10}{11} [/tex]
[tex]x = \frac{22}{11} = 2[/tex]
[tex] \frac{11}{10} x = 2(0.4 + 0.7) [/tex]
[tex] \frac{11}{10} x = 0.8 + 1.4[/tex]
[tex] \frac{11}{10} x = 2.2[/tex]
[tex]x = 2.2 \div \frac{11}{10} [/tex]
[tex]x = 2.2 \times \frac{10}{11} [/tex]
[tex]x = \frac{22}{11} = 2[/tex]