solve equation

w/9=9
A)1
b)-1
c)-81
d)81

What number divided by 9 is 9?

It is d)81. What number can be divided into 9 to get a positive 9, obviously 81. -81 would give you -9.

w/9 = 9

Multply both sides by 9
9*(w/9) = 9*9
w = 81

To solve the equation w/9 = 9, you need to isolate the variable 'w' on one side of the equation. Here's the step-by-step process:

1. Start with the equation: w/9 = 9.
2. Multiply both sides of the equation by 9 (since 9 is the denominator) to cancel out the fraction: (9)(w/9) = 9 * 9.
This simplifies to: w = 81.

Therefore, the value of w that solves the equation w/9 = 9 is 81.

So, the correct answer is d) 81.