Question

5(2y-9)+6y=4(3y-2)-21

Answer 1

5*2y+5*(-9)+6y=4*3y+4*(-2)-21

10y-45+6y=12y-8-21

16y-45=12y-29

16y-12y=45-29

4y=16

y=16:4

y=4