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a)[tex]3(x- \frac{11}{5}=0,75[/tex]
b)[tex]0,2(x+ \frac{16}{5}=4,2[/tex]


Răspuns :

a)  3[tex](x- \frac{11}{5})=0,75=> x- \frac{11}{5} =0,25=>x= \frac{25}{100} + \frac{11}{5}=> \\ =>x= \frac{245}{100} =>x=2,45[/tex]
b)[tex]0,2(x+ \frac{16}{5} )=4.2=>x+ \frac{16}{5} =21=>x= \frac{121}{5} \\ =>x= 24,2[/tex]