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9x - 1.8 is not an equation nor an inequality. There cannot, therefore, be any solution.

Q: What is the solution to 9x -1.8?

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9x+18 = 180 9x = 180-18 9x = 162 x = 18

If you mean: 7x-53 = 9x Then the solution is: x = -26.5

9x+6 = 7x+18 9x-7x = 18-6 2x = 12 x = 6

9 x 9 = 18 is false do you mean 9x + 9 = 18? then x =1

x^2-9x+18=(x-6)(x-3)

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9x+18 = 180 9x = 180-18 9x = 162 x = 18

If you mean: 7x-53 = 9x Then the solution is: x = -26.5

2x2 - 9x = 18 2x2 - 9x -18 = 0 (2x - 18)(x + 9) x= -9 and 9

9x + 9 - 1 = 9x + 8

9x+6=51 9x = 45 x= 5 9x-6=51 9x = 57 x= 6.33

9x+6 = 7x+18 9x-7x = 18-6 2x = 12 x = 6

9x+3y=-68 -2x+y=18 We are asked to solve with substitution so we first write y=18+2x. Let us substitute this into the first equation. 9x+3(18+2x)=-68 9x+54+6x=-68 15x=-68-54=-122 so x=-122/15 and y =18+2(-122/15)==18+-244/15=270/15-244/15=26/15 So the solution is (-122/15,26/15) which is an ordered pair.

9 x 9 = 18 is false do you mean 9x + 9 = 18? then x =1

x2-9x+18 = (x-3)(x-6) when factorised

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x^2-9x+18=(x-6)(x-3)

8x+9=9x-18+9 = 8x+9=9x-9 = 1x=0 (: