Question

Rezolvați ecuațiile:
a) 2x -2/7 =8
b)3/17x - 3/2 =1/6
c) 4/9x - 3/2=1/6
Ajutați - mă !! ☹☹

Answer 1

a) 2x - 2/7 = 8
    14x/7 - 2/7 = 56/7
    14x - 2 = 56
    14x = 58
    x = 58/14
    x = 29/7

b)3/17 *x  - 3/2 = 1/6
   18/102 * x - 51*3/102 = 17/102
    18x - 153 = 17
    18x = 170
     x = 170/18
     x = 85/9

c) 4/9 * x - 3/2 = 1/6
    8/18  * x - 27/18 = 3/18
    8x - 27 = 3
    8x = 30
    x = 30/8
    x = 15/4