Solve the following equations without transposing.

Hint: Here the equation is asked to be solved without transposing means the transfer of any term from one side to the opposite side is not allowed. So, first identify the constants and variables for the given expression and find the value for “z” by using the multiplication and division.

Complete step-by-step answer:
Take the given expression –
$9z = 81$
Divide the above expression by on both the sides of the equation –
\[\dfrac{{9z}}{9} = \dfrac{{81}}{9}\]
Common factors from the numerator and the denominator cancel each other on the left hand side of the equation.
\[z = \dfrac{{81}}{9}\]
Find the factors of the term on the numerator on the left hand side of the equation –
\[z = \dfrac{{9 \times 9}}{9}\]
Common factors from the numerator and the denominator cancel each other.
$z = 9$
This is the required solution.
So, the correct answer is “Option B”.

Note: Read the given question properly and understand the meaning of getting the solution and its meaning. Find the factors of the term by any method such as long division, prime factorization and even by just finding the factors when the number is too small. Remember the multiples of the numbers till at least till twenty.