[tex]1) \ \frac{18ab-3a}{3}=6ab -a \neq 6ab - b[/tex]
[tex]2) \ \frac{4x+6}{2} = 2x+3 \neq 2x+6[/tex]
[tex]3) \ \frac{6x^{2}+15x}{3} = 2x^{2}+5x \ - \ PRAWIDLOWO[/tex]
[tex]4) \ \frac{-18m-9}{-3} = 6m+3 \ - \ PRAWIDLOWO[/tex]
