-2x-6= -2x-6Another answer:-2x-6 = 2x+6-2x-2x = 6+6-4x = 12x = -3
-2x-6 = 14 -2x = 14+6 -2x = 20 x = -10
6 + 2x =2(3 + x)
It is a contradiction! 6x - 4x - 6 = 2x 2x - 6 = 2x -6 = 0 false
-6 + 4x + (9-2x) = -6 + 4x + 9 - 2x = [ 3 + 2x ]
-2x-6= -2x-6Another answer:-2x-6 = 2x+6-2x-2x = 6+6-4x = 12x = -3
4
6 is a digit . 2x is a variable. Therefore, you don't have an answer for 6+2x. You may ask "what is x if 6+2x=12?" 6+2x=12 Subtract 6 from both sides 2x=6 divide both sides by 3 x=2
-2x-6 = 14 -2x = 14+6 -2x = 20 x = -10
6 + 2x =2(3 + x)
2x - 3y = 6 2x = 6 + 3y 2x - 6 = 3y : 3y = 2x - 6 y = 2/3x - 2
It is a contradiction! 6x - 4x - 6 = 2x 2x - 6 = 2x -6 = 0 false
-6 + 4x + (9-2x) = -6 + 4x + 9 - 2x = [ 3 + 2x ]
4x+35-2x+25 = 6 2x+60 = 6 2x = 6-60 2x = -54 x = -27
-2x + 6 + 22 = -2x + 28
6 + 2x = x - 6 2x - x = -6 -6 x = -12
2x-6=4 6+4=2x 10=2x 10/2=x 5=x x=5