If 3x = x + 10 then 2x = 10 and x = 5
3x-2=x+8 (+2) 3x=x+10 (-x) 2x=10 (/2) x=5
If: 3x+20 = 2x-10 Then: x = -30
x = 2
-7
If 3x = x + 10 then 2x = 10 and x = 5
10 - 3x = x - 2x + 40 10 - 3x = - x + 40 10 - 40 = 3x - x -30 = 2x -15 = x
3x+6 = x-10 3x-x = -10-6 2x = -16 x = -8
X= 5
x+5 = 3x+15 x-3x = 15-5 -2x = 10 x = -5
3x + 2 = -10 3x = -12 x = -4
3x-2=x+8 (+2) 3x=x+10 (-x) 2x=10 (/2) x=5
3x+4=10 To solve: 3x+4=10 3x=6 x=2
If: 3x+20 = 2x-10 Then: x = -30
x = 2
If: x+7-4x+1 = -10 Then: 8-3x = -10 And: -3x = -10-8 => -3x = -18 So: x = -18/-3 => x = 6
x + 3x = 40 4x = 40 x = 10.