Question 623610
Graph the two equations using a graphing calculator to get


{{{ drawing(500, 500, -10, 10, -10, 10,
 graph( 500, 500, -10, 10, -10, 10,(3+x)/2,(2x+7)/4)

)}}}


Notice how the lines are parallel. So they will never cross. 


This means that there are no solutions.