Question

Solve the equation Quantity x minus 1 all over 9 = 2 for x.

Answer 1

Can you write an expression for that?

Answer 2

x minus 1 can be written as : \( x - 1\)

x minus 1 "all over 9" can be written as : \(\cfrac{x-1}{9}\)

Right?

Answer 3

yes

Answer 4

So now, it is given that :

x minus 1 all over 9 = 2

That is : \(\bf{\cfrac{x-1}{9} = 2}\)

Now can you solve for x?

Answer 5

no

Answer 6

Okay, multiply both sides by 9 :

\(\cfrac{x-1}{9} \times 9 = 2 \times 9\)

\(\cfrac{x-1}{\cancel{9}} \times \cancel{9} = 2 \times 9 \)

Answer 7

or , x- 1= 18