alright
so the first thing you do is set up your equation
it should look something like this:
90=3x+10
next, you subtract 10 from each side resulting in 80
3x=80
divide 80 by three and you should get 26.67 or rounding either 26 or 27
then round up or down... according to the instructions.....
hope I could help! :)) XD
