Sagot :
12-2x + 8x/6 = 13
12-2x+8x/6 -12 = 13-12
-2x+8x/6 = 1
-2x+8x/6 x6 = 1x6
-2x+8x = 6
6x = 6
6x/6 = 6/6
x = 1
12-2x+8x/6 -12 = 13-12
-2x+8x/6 = 1
-2x+8x/6 x6 = 1x6
-2x+8x = 6
6x = 6
6x/6 = 6/6
x = 1