Odpowiedź :
1)
[tex]3x= -8 \ \ /:3\\\\x = -\frac{8}{3}\\\\\boxed{x = -2\frac{2}{3}}[/tex]
2)
[tex]-5a = -15 \ \ /:(-5)\\\\\boxed{a = 3}[/tex]
3.
[tex]7g = -21 \ \ /:7\\\\\boxed{g = -3}[/tex]
4)
[tex]6y = -20 \ \ /:6\\\\y = -\frac{10}{3}\\\\\boxed{y = -3\frac{1}{3}}[/tex]
5.
[tex]\frac{1}{5}x = 7 \ \ /\cdot5\\\\\boxed{x = 35}[/tex]
6.
[tex]-\frac{2}{3}j = 4 \ \ \cdot(-\frac{3}{2})\\\\\boxed{j = -6}[/tex]
[tex]3x = - 8 \\ x = - \frac{8}{3} = - 2 \frac{2}{3} [/tex]
[tex] - 5a = - 15 \\ a = 3[/tex]
[tex]7g = - 21 \\ g = - 3[/tex]
[tex]6y = - 20 \\ y = - \frac{20}{6} = - 3 \frac{2}{6} = - 3 \frac{1}{3} [/tex]
[tex] \frac{1}{5} x = 7 | \times 5 \\ x = 35[/tex]
[tex] - \frac{2}{3} j =4 | \times 3 \\ - 2j = 12 \\ j = - 6[/tex]