Question 896460
e algebra marks of five students are x,3x,2x-1,5x+9,4x+7. 
A = {{{((x+3x+(2x-1)+(5x+9)+(4x+7)))/5}}}
combine like terms
A = {{{((x+3x+2x+5x+4x-1+9+7))/5}}}
A = {{{((15x+15))/5}}}
5 divides evenly into both terms
A = 3x+3 is the mean