Odpowiedź:
1.
5x - 8 + 6x = -16x - 17
11x - 8 = 16x - 17
11x - 8 = -16 x - 17
11x - 8+8 = - 16x - 17 +8
11x= - 16x - 9
11x= -16x - 9
11x + 16x = - 16x - 9 + 16x
27x = - 9
x= - 1/3
---------------------------------------------------------------------------------
2.
3.
----------------------------------------------------------------------------------
4. (2x +5) (x-3 ) - 3x = 3 -2x(1-x)
2x(x-3) + 5 (x - 3) - 3x = 3 - 2x (1 - x)
2x^2 - 6x + 5 x - 15 - 3x = 3 - 2x (1 - x)
2x^2 - x - 15 - 3x =3 - 2x (1 - x)
2x^2 - 4x - 15 = 3 = 2x (1 - x)
rozwiązanie : 2x^2 - 4x - 15 = 2x^2 - 2x + 3
-------------------------------------------------------------------------------------
5. 6(x - 2) - 1(2x+5) = 4( x +7) - 11
6x - 12 - 2x - 5 =4 (x +7 ) - 11
6x - 17 - 2x = 4(x + 7) - 11
6x - 17 - 2x = 4( x + 7) - 11
4x - 17 = 4 (x + 7) - 11
4x - 17 = 4(x + 7 ) - 11
4x - 17 = 4x + 28 - 11
Wynik = 34
Szczegółowe wyjaśnienie:
