51 - x = 24
Add 'x' to both sides
51 -x + x = 24 + x -x + x = 0
Hence
51 = 24 + x
Subtract 24 from both sides
51 - 24 = 24 - 24 + x
24 - 24 = 0
51 - 24 = x
x = 27
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24 and 51 are composite, 3 is prime.
22
24, 51 and 72 are composite numbers 71 is a prime number.
Subtract 51 from 2012 equals 1961.
26-50=-24 51-75=-24 76-100=-24