11x + 29
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- 7x + (9x - 3) = - 7x + 9x - 3 = 2x - 3
5x + 3 - 4 + 4x = 9x -1
2x2+9x+9 = (2x+3)(x+3) when factored
2x + 3 = 9x Subtract 2x from both sides: 3 = 7x Divide both sides by 7: 3/7 = x
2x + 3y = 9x = 3, y = 1 therefore 6 + 3 = 9