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Anonymous
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It could be anything; the sentence is incomplete.
If 2x = -86, x = -43
If 2x - 86 = 0, x = 43
Wiki User
x+x=2x
only when x is equal to 2
x2 - 2x = x(x-2) and that cannot be simplified further.
Only if x is equal to 2.
6 + 2x =2(3 + x)