Решите уравнение 1) X-5/2=9-x/3 2) 8+x/7=3x-5/6,5 3) 7x+9/2,5=5x-2/6 4) 0,6/x-3=2,1/x+2.
1) x - 5/2 = 9 - x/3 | *3 3x - 15/2 = 27 - x 4x = 27+15/2 4x = 69/2 x = 69/8 x = 8,625