6 7 8 номера пожалуйста помогите
6) 1,4x-3,5=0,7 1,4x=4,2 x=3 7) 5/36 + 4x/3 = 2/3 - 12/72 4x/3 = 48/72 - 12/72 - 10/72 4x/3 = 26/72 x=26/72 * 3/4 x=13/24 *1/2 x=13/48 8) 1x/6 - 39/6 =(25/9 + 30/9) : 5/3 1x/6 - 39/6=55/9 *3/5= 1x/6 - 39/6=11/3 1x/6 = 22/6 +39/6 x=61/6*6/1 x=61