6x + 2 = 6 6x = 4 x = 2/3
9x + 3 - 6x - 2 = 3x + 1
6x + 3 = 2x + 5 4x = 2 x=1/2
20
You don't know that?! If x=3, then 6x is 6x3. So 18 plus 2 is.....20!!
x=-6,5
-4x+3 = 23+6x -4x-6x = 23-3 -10x = 20 x = -2
6x + 8 = 6 6x = -2 x = -2/6 x = -1/3
6x-2=x+135x=15x=3
x = 1/3
X=2
6x = 1 x = 1/6