Odpowiedź
[tex]\boxed{\displaystyle{ \:\:\: x \: = \: \frac { \, -5 \, } {2} \:\:\: }}[/tex]
Szczegółowe wyjaśnienie
[tex]\displaystyle{ \frac { \, 1 \, } {5} x - 9 \: = \: x - 7}\\\\\\\displaystyle{ x - 9 \cdot 5 \: = \: x \cdot 5 - 7 \cdot 5}\\\\\displaystyle{ x - 45 \: = \: 5x - 35}\\\\\displaystyle{ - 45 + 35 \: = \: 5x - x}\\\\\displaystyle{ - 10 \: = \: 4x }[/tex]
[tex]\displaystyle{ \frac { \, -10 \, } {4} \: = \: x }\\\\\\\displaystyle{ \frac { \, -5 \, } {2} \: = \: x }[/tex]
