Answer:
Let G be Emily's gross pay.
Deductions:
FIT = 112
State Tax = 0.04G
City Tax = 0.015G
Social Security and Medicare
Net pay = Gross pay - Deductions
3,223 = G - 112 - 0.04G - 0.015G - Social Security - Medicare
We can then solve for G by isolating it on one side of the equation:
3,223 + 112 + 0.04G + 0.015G = G - Social Security - Medicare
3,223 + 0.055G = G - (Social Security + Medicare)
Now we can solve for G by dividing both sides by 1.055
G = 3223 / 1.055 + (Social Security + Medicare)
So we can find the gross pay but we don't have the exact amount for Social Security and Medicare that are being deduced.