Please help
Solve for g.
247 = g + -54
g =

How do you solve a question like this?

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account

Problem number 26 of the rhind papyrus says: find a quantity such that when it is added to of itself the result is a 15. the modern day equation that models this problem is x + x = 15. what is the solution to the equation? x = 10 x = 12 x = 15 x = 30