Rozwiązane

3 (x - 2) = x + 11
-3 (x - 2) = x + 11
-3 (2 - x) = x + 11
-4 (x + 2) = 2 (X - 4) ​



Odpowiedź :

Przemekpiotr

[tex]3(x - 2) = x + 11 \\ 3x - 6 = x + 11 \\ 3x - x = 11 + 6 \\ 2x = 17 | \div 2 \\ x = 8.5 [/tex]

[tex] - 3(x - 2) = x + 11 \\ - 3x + 6 = x + 11 \\ - 3x - x = 11 - 6 \\ - 4x = 5 | \div ( - 4) \\ x = - \frac{5}{4} = -1 \frac{1}{4} = - 1.25[/tex]

[tex] - 3(2 - x) = x + 11 \\ - 6 + 3x = x + 11 \\ 3x - x = 11 + 6 \\ 2x = 17 | \div 2 \\ x = 8.5 [/tex]

[tex] - 4(x + 2) = 2(x - 4) \\ - 4x - 8 = 2x - 8 \\ - 4x - 2x = - 8 + 8 \\ - 6x = 0 | \div ( - 6) \\ x = 0[/tex]