Question 1154118
Find 
({{{f}}} o {{{g}}})({{{x}}}) 
({{{g}}} o {{{f}}})({{{x}}}) 

 if they exist


{{{f(x) = 2x + 7}}}

{{{g(x) = -5x-1}}}



({{{f}}} o {{{g}}})({{{x}}}) ={{{f(g(x))}}}

({{{f}}} o {{{g}}})({{{x}}}) ={{{f(-5x-1)}}}

({{{f}}} o {{{g}}})({{{x}}}) ={{{2(-5x-1)+7}}}

({{{f}}} o {{{g}}})({{{x}}}) ={{{-10x-2+7}}}

({{{f}}} o {{{g}}})({{{x}}}) ={{{-10x+5}}}



({{{g}}} o {{{f}}})({{{x}}}) ={{{g(f(x))}}}

({{{g}}} o {{{f}}})({{{x}}}) ={{{g(2x + 7)}}}

({{{g}}} o {{{f}}})({{{x}}}) ={{{-5(2x + 7)-1}}}

({{{g}}} o {{{f}}})({{{x}}}) ={{{-10x -35-1}}}

({{{g}}} o {{{f}}})({{{x}}}) ={{{-10x -36}}}