This is so confusing pls : 60 percent of 78 is the same as 65 percent of what number?

Each of the walls of a room with square dimensions has been built with two pieces of sheetrock, a smaller one and a larger one. the length of all the smaller ones is the same and is stored in the variable small. similarly, the length of all the larger ones is the same and is stored in the variable large. write a single expression whose value is the total area of this room. do not use any method invocations.

If 3x+8=3x+8 is it one solution or no solution

Hardest math question of all time can you solve the equation. check for extraneous solutions.9∣9-8x∣ = 2x+3