-(2x+1)=41


5(12-x)=27


1,2(2x-1)=3,6


реши уравнения

1)

-2x-1=41

-2x=42

x=-21

2)

60-5x=27

60-27=5x

33=5x

x=6,6

3)

2,4x-1,2=3,6

2,4x=4,8

x=2

1. -(2x+1)=41-2x-1=41-2x=42x=42:(-2)x= -212. 5(12-x)=2760-5x =27-5x=27-60-5x= -33x= 6,63. 1,2(2x-1)=3,62,4x-1,2=3,62,4x=4,8x=2