Question

Solve the equation for x.


x2 = 9

Answer 1

x2=9
-2 -2
———
x=7

To answer this problem make sure you subtract 2 from each side and 7 is your answer.

Answer 2

= 2x = 9

= x = 9 ÷ 2 ( transposing ×2 from LHS to RHS changes ×2 to ÷2 )

= x = 4.5

Therefore , x = 4.5 .