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-78
x = 3Solution:3x + -1 = 83x = 8 + 13x = 9x = 9/3x = 3Check:3(3) + -1 = 89 + -1 = 88 = 8
(X) * 149 = 83X = 83/149 = 0.557 or 55.7%
Call the numbers 'x', 'x+1', and 'x+2'.3x = (x+1) + (x+2) + 83x = x + 1 + x + 2 + 83x = 2x + 11Subtract 2x from each side:x = 11The numbers are 11, 12, and 13.===========================Check:3(11) ?=? (12 + 13) + 833 = 25 + 833 = 33yay !
If you mean: 4x-87x+9 then the expression can be simplified to: 9-83x