Решите уравнения плииз:
1) 4-5х=0
2) 3-4х=х-12
3) (х+7)-(3х+5)=2
4) 3(2х-1)+12=х
5) х/3+х/4=7

1)4-5х=0-5х=-4х=-4:(-5)х=4/5=0,82)3-4х=х-12-4х-х=-12-3-5х=-15х=-15:(-5)х=33)(х+7)-(3х+5)=2х+7-3х-5=2х-3х=2+5-7-2х=0х=04)3(2х-1)+12=х6х-3+12=х6х-х=-12+35х=-9х=-9:5х=-1,85)4x+3x=7*127x=84x=84:7х=12

1) 4 - 5x = 0- 5x = -4x = 4/52) 3 - 4x = x - 12-4x - x = -3 - 12- 5x = -15x = 33) (x + 7) - (3x + 5) = 2x + 7 - 3x - 5 = 2x - 3x = 2 - 7 + 5- 2x = 0x = 04) 3 (2x -  1) + 12 = x6x - 3 + 12 - x = 05x + 9 = 05x = -9x = - 9/5 = - 1,8