Odpowiedź :
[tex]20x + 53 - 22x - 27 = - 2x + 26 = - 2(x - 13)[/tex]
[tex] - 10x + 4 - 5x - 15 = - 15x - 11 = - (15x + 11)[/tex]
[tex] - 34x + 31 - 14x - 9 = - 48x + 22 = - 2(24x - 11)[/tex]
[tex]6x + 3y + x - y = 7x + 2y[/tex]
[tex]20x + 53 - 22x - 27 = - 2x + 26 = - 2(x - 13)[/tex]
[tex] - 10x + 4 - 5x - 15 = - 15x - 11 = - (15x + 11)[/tex]
[tex] - 34x + 31 - 14x - 9 = - 48x + 22 = - 2(24x - 11)[/tex]
[tex]6x + 3y + x - y = 7x + 2y[/tex]