Assuming that's -4x - 5x + 9, the answer would be x =1
As -4x - 5x + 9 = 0
Making it 9 = 5x + 4x, or 9 = 9x, cancel out the 9's, making x = 1.
If it's -4x - 5 x 9, the answer would x = 11.25
As -4x - 5 x 9 = 0
Making it 45 = 4x, divide the 45/4, which would give you 11.25.
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5x + 3 = 4xSubtract 3 from each side:5x = 4x - 3Subtract 4x from each side:x = -3
Solve for x 3-4x=5x-6 Subtract 5x from both sides to get 3-4x-5x=-6 Subtract 3 from both sides to get -4x-5x=-6-3 Combine like terms on each side to get -9x=-9 Divide each side by -1 to get 9x=9 Divide each side by 9 to get x=1 Answer x=1
9x = 60x = 60/9 = 6 2/3 (or 6.67)
20x^2 + 27x + 9 = 0 20x^2 + 15x +12x + 9 = 0 5x(4x + 3) + 3(4x + 3) = 0 (5x + 3)(4x + 3) = 0 So either (5x + 3) = 0 which yields x = -3/5 or (4x + 3) = 0 which yields x = -3/4
5x + 14 = 95 - 4x 5x + 4x = 95 - 14 9x = 81 x = 81/9 x = 9