Question 1178057

{{{x}}}, {{{x+1}}},{{{x+2}}},{{{x+3}}}

express the sum of the first integer and the third integer 

First integer = {{{x}}}

Third integer = {{{x + 2}}}

the sum is {{{x + x + 2 }}}

By adding like terms

{{{2x + 2 }}}

We can also take {{{2}}} common:

{{{2(x + 1) }}}