Question 110024

Write an expression for the sum of an even integer and the next two even integers.
Let x = the 1st integer:
x + (x+2) + (x+4)
3x + 6
:
:
The sum of i/4 of an integer, i/5 of the next integer, and i/2 of the following integer.
Let x = the 1st integer:
:
{{{(i/4)}}}x + {{{(i/5)}}}(x+1) + {{{(i/2)}}}(x+2)
:
Put it over a common denominator (20):
{{{(5i/20)}}}x + {{{(4i/20)}}}(x+1) + {{{(10i/20))}}}(x+2)
:
{{{(5xi/20)}}} + {{{(4xi+4i)/20}}} + {{{(10xi+20i)/20))}}}
:
{{{(5xi + 4xi + 4i + 10xi + 20i)/20))}}}
:
{{{(19xi + 24i)/20))}}}
:
{{{(i(19x + 24))/20))}}}