A multiplicative inverse is the same thing as a reciprocal, which is basically just flipping the fraction and changing the sign. Therefore the multiplicative inverse of -1/9 is 9
Answer: Isolate the variable by dividing each side by factors that don't contain the variable.
x= -7, -9
If the number of bacteria

is a function only of temperature

, and the temperature

is a function only of time in hours

, then
