Question

the number or room on the ground floor of a building is 12 less than the twise of rooms on the first floor if the first floor has x rooms, how many rooms does the ground floor has

Answer 1

Step-by-step explanation:

no of rooms may x

then 2x-12=x

2x-x=12

x. =12

2×12-12=12

so rooms in group floor is 12