Both of the first
8 - N = 22
N - 8 = 22
Represent the difference between a number and 8 is 22 as it is not mentioned that either 8 or the unknown number N is greater so both of the first two represent the difference between a number and 8 is twenty two.
this is because the question ask the difference of a <em>number</em> and <em>eight</em> is twenty-two, which means a number (N) comes first before the difference ( - ) is eight (8) is (=) twenty two (22) following this order gives the answer above in bold.
