0
Anonymous
times 9 or multiplied by 9.
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-12 = x+9 x+9 -9 = -12 -9 x = -21
13
2x + 9
X = Y = 9 The answer must be 9, since it says it in the problem. x = 9, y=9, and x = y are all true based on the given info.
log9(x)=2 x=9^2 x=81