Difference in math means subtraction. To express the difference between 6 and 2 you would use the equation 6 - 2 = 4.
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The answer is I dont like math sorry!! :D
what does equation mean
do you mean math equation? If you add a number to both sides of an equation you do not change it. That is called algebra
Equations that have the same solution.
The phrase "first difference" is usually associated with a sequence of numbers: a(1), a(2), a(3), a(4), ... . The sequence may have a simple rule for generating the numbers , a complicated rule or, if it is a random sequence, no rule at all.The sequence of first differences is a(2)-a(1), a(3)-a(2), a(4)-a(3), ...