Odpowiedź:
2-(5 + x) = 2(3 - x)
2 - 5 - x = 6 - 2x
-3 - x = 6 - 2x
- x + 2x = 6 + 3
x= 9
spr.
2-(5 + x) = 2(3 - x)
L= 2 - (5 + 9) = 2 - 14= - 12
P= 2(3 - x) = 2(3 - 9) = 2*(-6) = - 12
-12 = - 12
L=P
5(x+1) - 2(2x + 3) + 4x = -x
5x +5 - 4x - 6 + 4x = - x
5x - 4x + 4x + 5 - 6 = - x
5x - 1 =-x
5x + x = 1
6x = 1
x= 1: 6
x= 1/6
spr.
5x - 1 =-x
L = 5x - 1= 5* 1/6 - 1 = 5/6 - 1= 5/6 - 6/6 = - 1/6
P = -x = - 1/6
-1/6 = - 1/6
L=P
Szczegółowe wyjaśnienie:
