99.
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9x + 3x - 9x = 6 + 8x - 113x = 8x - 11-5x = -11x = 2.2 or 11/5
6x2-9x-6 is equal to 66.
9x-11 = 6x+1 9x-6x = 1+11 3x = 12 x = 4
6x + 47 = 9x + 11 6x + 36 = 9x 36 = 3x 12 = x
Let the unknown number be x: 9x-19 = 7x+11 9x-7x = 11+19 2x = 30 x = 15