Write out the equations and solve. It is possible for one to have no solution.
- (square root of X) equals 7
- (square root of (X – 2)) plus 5 equals 9
- 4 times the (square root of X) minus 1 equals 23
- (square root of X) times five equals 3
- (square root of (20 – X)) equals X
Check your answers when you have finished them all.
Answers: (49, 18, 36, no solution, 4)
(edited from source)