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KotBartek

[tex]3a - \frac{8b}{3b}[/tex] for [tex]a = -2 \\b = -4[/tex]

[tex](3 * -2) - \frac{8*-4}{3 *-4}[/tex]

[tex]-6 - \frac{8*-4}{3*-4}[/tex]

[tex]-6 - \frac{-32}{-12}[/tex]

[tex]-6 - (-32:-12) = -6 - 2,(6) = -8,(6)[/tex]

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