I Am Doing Equations.

y=2.5x-15=220

Please Help Me Solve This Question. :}

2.5x-15 = 220

add 15 to each side of the equation to get
2.5x -15 + 15 = 220 + 15
2.5x = 205
Now divide both sides by 2.5
2.5x / 2.5 = 205 /2.5
x = 82