minus 4 plus 9 = 5, so 5x
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Right, 3x-4x+9x-x1. 3x - x = 2x2. 9x-4x = 5x- 2x +5x = 7x
9x = 4x + 45 5x = 45x = 9
4x+7=9x+7 -5x=0 x=0
9x + 8 = 4x + 23Subtract 8 from both sides9x = 4x + 15Subtract 4x from both sides5x = 15Divide both sides by 5x = 3
4x + 55 = 9x + 10 55 = 5x + 10 45 = 5x x = 9