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Anonymous
x+9= 1
Lily Hawkes ∙
x+2=9 x=9-2 x=7
-23
3x-2y+9+9y-x = 2x+7y+9
-5x + x + 9 = -4x + 12 -4x + 9 = -4x + 12 9 = 12 This equation has no solution.
x^2 +8x -9 is equivalent to (x+9)(x-1) when factored