Odpowiedź :
a)
[tex] \frac{x + 8}{5} = 20 | \times 5 \\ x + 8 = 100 \\ x = 92[/tex]
b)
[tex] \frac{x - 6}{2} = 4 | \times 2 \\ x - 6 = 8 \\ x = 14[/tex]
c)
[tex] \frac{x + 1}{3} = - 2 | \times 3 \\ x + 1 = - 6 \\ x = - 7[/tex]
a)
[tex] \frac{x + 8}{5} = 20 | \times 5 \\ x + 8 = 100 \\ x = 92[/tex]
b)
[tex] \frac{x - 6}{2} = 4 | \times 2 \\ x - 6 = 8 \\ x = 14[/tex]
c)
[tex] \frac{x + 1}{3} = - 2 | \times 3 \\ x + 1 = - 6 \\ x = - 7[/tex]