Résoudre chaque équation. A/ 2/3x+2=4/9x-1 B/ 6/5x-21/10=27/10x-3/5 C/ 3/2x+2=2/3x-1

A/ 2/3x + 2 = 4/9x - 1
   = 2/3x - 4/9x = - 1 - 2
   = 6/9x - 4/9x = - 3
   = 2/9x = - 3
   = x = - 3 / (2/9)
   = x = - 3 x 9/2
   = x = - 27/2

A/ 2/3x+2=4/9x-1
2/3x-4/9x  = -1-2
6/9x-4/9x = -3
2/9x = -3
x = -3*9/2
x = -27/2

B/ 6/5x-21/10=27/10x-3/5
6/5x -27/10x = -3/5 +21/10
12/10x-27/10x = -6/10+21/10
-15/10x = 15/10
-3/2x = 3/2
x = 3/2 * -2/3
x = -1

 C/ 3/2x+2=2/3x-1
3/2x -2/3x = -1-2
9/6x -4/6x = -3
5/6x = -3
x= -3* 6/5
x = -18/5