решите пожалуйста 1)1/3x+6=1 2)x-5/2-1=6x/7 3)16-(2x+5)=30

1) 1/3x + 6 = 11/3x = 1 - 61/3x = - 5x= - 5 × 3x = - 152) x - 5/2-1 = 6x / 7x - 5 / 1 = 6x/76x = 7( x - 5)6x = 7x - 356x - 7x = - 35- x = - 35x = 353) 16 - ( 2x + 5) = 3016 - 2x - 5 = 30- 2x = 30 - 11- 2x = 192x = - 19x = - 9,5