1)6x-1=2x-9
2)(7-4x)-(3x-2)=12
3)x/3+x/2=15

1)6x-1=2x-96х - 2х = -9 + 14х = -8х = -8/4 = -2 2)(7-4x)-(3x-2)=127 - 4x - 3x+2 = 12-7х = 12 - 7 - 2-7х = 37х = -3х = -3/73)x/3+x/2=15  |*62x + 3x = 905x = 90x = 90/5 = 18

1) 6x-1=2x-9 6x-2x=-9+1 4x=-8 x=-22) (7-4x)-(3x-2)=12 7-4x-3x+2=12 9-4x-3x=12 9-7x=12 -7x=12-9 -7x=3 x=-3/73) x/3+x/2=15 2x/6+3x/6=15 5x/6=15 5x/6=15/1 5x=90 x=18