Question

Celeste wants to have her hair cut and permed and also go to lunch. She knows she will need $77. The perm costs twice as much as her haircut and she needs $5 for lunch.
How much does the perm cost?

Answer 1

2x+5=77.
-5. -5
2x. = 72
2. 2
x= 36

to check all you do is plug in 36 into x
so you get 2(36)+5 which equals 77.


2x is the permed
5 is for lunch
77 total money they have