3x - 3 = 2x + 6 3x = 2x + 9 x = 9
Solve:4 - 3x = 104 - 3x - 4 = 10 - 4-3x = 6-3x/-3 = 6/-3x = -2Check:4 - (3 x -2) = 104 - (-6) = 104 + 6 = 1010 = 10
3x + 6 = 12Subtract 6 from each side:3x = 6Divide each side by 3:x = 2
0.5
7x+6 = -3x-24 7x+3x = -24-6 10x = -30 x = -3
-3x=-15+6 -3x=-9 x=-9/-3 x=3
3x - 3 = 2x + 6 3x = 2x + 9 x = 9
2x+3=3x-3 2x-3x=-3-3 -x=-6 x=6
6x-3x =6 3x=6 so 6 divided by 3 = 2
3x-2y=6 -2y=-3x+6 y=1.5x-3
3x - 6 = 4Add 6 to each side :3x = 10Divide each side by 3 :x = 10/3 = 3-1/3
If: 3x-3 = 7x+21 Then: x = -6
6
-3
If 3x + 3 = 2x + 6 then 3x - 2x = 6 - 3 x = 3
First of all, if 'x' is 3, then 'x' doesn't equal -3x+3 . You must mean y = -3x + 3.If x=3, then (-3x + 3) = -6 .The graph is the point (3, -6) .
equivalent to 3x -6 = -9; so 3x = -9 + 6; so 3x = -3 so x = -1. Check: -6 + (3 * -1) = -6 + (-3) = -9 QED