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The sum of four consecutive even numbers is 92. Determine these numbers.

Correct result:

a =  20
b =  22
c =  24
d =  26

Solution:


a+b+c+d=92
b=a+2
c=b+2
d=c+2

a+b+c+d = 92
a-b = -2
b-c = -2
c-d = -2

a = 20
b = 22
c = 24
d = 26

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