its an algebra equation
If my electric bill is $110.06 and the state tax is 23.53 %, what is my original electric bill?
Let x = the original electric bill.
Since the total = original + tax, we can set up the equation as
x + .2353 x = 110.06
1.2353x = 110.06
x = 110.06/1.2353
I'll leave the final calculation for you
You are given that the total bill amount is $110.06 and that the tax on the original amount is 23.53%.
Let x represent the original amount of the bill. With this and the given info above, we arrive at the following:
x + x(23.53%/100%) = 110.06
x + x(0.2353) = 110.06
x + (0.2353)x = 110.06
(1.2353)x = 110.06
x = 89.095766210637
x ≈ 89.10
Thus, the original bill amount is approximately $89.10