Cześć!
Szczegółowe wyjaśnienie:
Zadanie
ROZWIĄZYWANIE RÓWNAŃ
a)
[tex]8 - 2x + 4 - 6x = 7 \\ 12 - 8x = 7 \\ - 8x = 7 - 12 \\ - 8x = - 5 | \div ( - 8)\\ \boxed{x = \frac{5}{8} }[/tex]
b)
[tex] \frac{1}{3} x + 9 = 2 \\ x + 27 = 6 \\ x = 6 - 27 \\ \boxed{x = - 21}[/tex]
c)
[tex]6x - 4 = 2x + 5 \\ 6x- 2x = 5 + 4 \\ 4x = 9 \ | \div 4 \\ \boxed{x = \frac{9}{4 \: } }[/tex]
d)
[tex] \frac{1}{2} x + 7 - 4x = - 9 \\ x + 14 - 8x = - 18 \\ - 7x - 14 = - 18 \\ - 7x = - 18 - 14 \\ - 7x = - 32 | \div - 7 \\ \boxed{x = \frac{32}{7} }[/tex]
