y=15
5y-20=2y+25 move terms
5y-2y = 25+20 calculate like terms
3y=45 divide both sides by 3
You would make the equation 5y-20=2y+25 and then solve
You would add both sides by 20
5y=2y+45
Then you would add both sides by -2y
3y=45
finally you will multiply both sides by 1/3 and get 15 as Y
