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The Greatest Common Factor is 3.
The Answer Is 81 Because 3x3=9 Then 9x3=27 Then 27x3=81 There :)
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As long as the equation is 9x3 + 27x2 - 90x = 0, the answer is : 27 + 27x2 - 90x = 0 9x3 = 27 27 + 54 - 90x = 0 27x2 = 54 81 - 90x = 0 27 + 54 = 81 81 = 90x add 90x to each side 9/10 = x divide each side by 90 x = .9
because their the same number just switched in place