Odpowiedź:
[tex]a)2x + 3m = 5 \\ 2x = 5 - 3m \: \: \: \: | \div 2 \\ x = \frac{5 - 3m}{2} [/tex]
[tex]b)mx - 7m = x - m \\ mx - x = - m + 7m \\ x(m - 1) = 6m \: \: \: \: | \div (m - 1) \\ x = \frac{6m}{m - 1} [/tex]
[tex]c)5mx - m = 10x - 2 \\ 5mx - 10x = - 2 + m \\ x(5m - 10) = - 2 + m \: \: \: \: \: | \div (5m - 10) \\ x = \frac{ - 2 + m}{5m - 10} [/tex]
