Explicație pas cu pas:
[tex]2.(3) = \frac{23 - 2}{9} = \frac{21}{9} = \frac{7}{3} [/tex]
[tex] \bf \: 2.(3) = \frac{23 - 2}{9} = \frac{ \not21}{ \not9} = \frac{7}{3} [/tex]☑️
⚠️ [tex] \bf \: x.(y) = \frac{xy - x}{9} [/tex] ⚠️
