The required equation is 64x = 8 and the unknown variable is 1/8
Functions and expressions
Let the unknown variable be "x"
If the unknown number of 64 is 8, this can be expressed as:
x of 64 = 8
64x = 8
Divide both sides by 64
64x/64 = 8/64
x = 1/8
Hence the required equation is 64x = 8 and the unknown variable is 1/8
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