Question 1021401
{{{f(x) = 10x + 23 }}}
{{{g(x) = 13x + 21}}}

{{{f(x) +g(x) =10x + 23+13x + 21}}}

{{{f(x) +g(x) =23x + 44}}}


domain: { {{{x}}} element {{{R}}} }-all real numbers

interval:

({{{-infinity}}},{{{infinity}}})