Odpowiedź:
-(2x-1)=4
- 2x + 1 = 4
- 2x = 4 - 1
- 2x = 3 / : ( - 2)
x = - 1,5
spr
- (2*(-1,5) - 1) = 4
- (- 3 - 1) = 4
- ( - 4) = 4
4 = 4
2(x+1)=x
2x + 2 = x
2x - x = - 2
x = - 2
spr
2( - 2 + 1) = - 2
2* ( - 1) = - 2
- 2 = - 2
2t-(3t+1)=6
2t - 3t - 1 = 6
- t = 6 + 1
- t = 7 / : ( - 1 )
t = - 7
spr
2*( - 7) - (3* ( - 7) + 1) = 6
- 14 - ( - 21 + 1) = 6
- 14 - ( - 20) = 6
- 14 + 20 = 6
6 = 6
Szczegółowe wyjaśnienie:
