31 Вправа 31Алгебра 8 клас Бевз 2025 · § 1 · стор. 11

а) ${\displaystyle \frac{c+2}{5}=}$${\displaystyle 1}$

${\displaystyle c+2=}$${\displaystyle 5}$;

${\displaystyle c=}$${\displaystyle 3}$;

б) ${\displaystyle \frac{c+2}{5}=}$${\displaystyle 0}$

${\displaystyle c+2=}$${\displaystyle 0}$;

${\displaystyle c=}$${\displaystyle -2}$;

в) ${\displaystyle \frac{c+2}{5}=}$${\displaystyle -1}$

${\displaystyle c+2=}$${\displaystyle -5}$;

${\displaystyle c=}$${\displaystyle -7}$;

г) ${\displaystyle \frac{c+2}{5}=}$${\displaystyle 2}$

${\displaystyle c+2=}$${\displaystyle 10}$;

${\displaystyle c=}$${\displaystyle 8}$;

ґ) ${\displaystyle \frac{c+2}{5}=}$${\displaystyle -100}$

${\displaystyle c+2=}$${\displaystyle -500}$;

${\displaystyle c=}$${\displaystyle -502}$.