Respuesta :
First we multiply -27 times 7 which give us a result of -189.
Then we divided by 9.
So the answer is -21.
I we what to check we can multiply -21 * 9 which is -189
Or divide -189 divided by -21 whic is 9
Then we divided by 9.
So the answer is -21.
I we what to check we can multiply -21 * 9 which is -189
Or divide -189 divided by -21 whic is 9
Divide the numerator and denominator by 9 : -3•7 / 1 = -21.
This method only works in math.