Question 81567
x+y=71
x+(4x+6)=71
5x+6=71 [solve for x]
5x=71-6
5x=65
x=13
.
Therefore,
x+y=71
13+y=71
y=71-13
y=58 
or y=4x+6=4(13)+6=58
or 13+58=71