g)
[tex]5x -6(x + 7) = 8x - 9(10 + x)[/tex]
[tex]5x - 6x - 42 = 8x - 90 - 9x[/tex]
[tex]5x - 6x - 8x + 9x = - 90 + 42[/tex]
[tex]0 = - 48[/tex]
równanie sprzeczne, 0 ≠ -48
h)
[tex]0.1(x - 10) - 0.6x = 1.5x - 4[/tex]
[tex]0.1x - 1 - 0.6x = 1.5x - 4[/tex]
[tex]0.1x - 0.6x - 1.5x = - 4 + 1[/tex]
[tex] - 2x = - 3[/tex]
[tex]2x = 3[/tex]
[tex]x = \frac{3}{2} = 1 \frac{1}{2} [/tex]
