For what value of a does the equation 3y + 2a = 4y +7 - y +3 have infinitely many solutions for y?
3y + 2a = 4y +7 - y +3 simpify
3y + 2a = 3y + 10
This will have infinite soutions when the left side = the right side....so this implies that.
2a = 10 divide both sides by 2
a = 5