Well, darling, double of 57 is simply 114. It's as easy as pie - no need to make a song and dance about it. Hope that clears things up for you, sugar.
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9 - 4x = 57 9 - 9 - 4x = 57 - 9 -4x = 48 -4x/-4 = 48/-4 x = -12 Always double check your answer. 9 - 4x = 57 9 - 4(-12) = 57 9 + 48 = 57 57 = 57 So 9 - 4x = 57 when x = -12
57 times 57 = 3249
-57
The reciprocal of 57 is 1/57
57