2x + 6x + 4x = 12x
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-2x + 6 <= 4x + 18 -2x <= 4x + 12 -12 <= 6x -2 <= x
6x
6X + 3 = 2X + 19Subtract 3 from each side:6X = 2X +16Subtract 2X:4X = 16Divide by 4X = 4
-2x + 11 + 6x = 4x + 11
2x+9=6x-3 Therefore 4x=12 -->x=3