Odpowiedź:
a)
[tex] - 6(4x + 8y - 9) = ( - 6x - 12y + 14) \times 4 \\ - 24x - 48 y+ 54 = - 24x - 48y + 56 \\ [/tex]
F
b)
[tex]( - 6x - 12y + 14) \times 4 = 10(5.4 - 4.8y - 2.4x) \\ - 24x - 48y + 56 = 54 - 48y - 24x[/tex]
F
c)
[tex] - 6(4x + 8y - 9) = 10(5.4 - 4.8y - 2.4x) \\ - 24x - 48y + 54 = 54 - 48y - 24x[/tex]
P