Question 610601
45 over -70 n equals 9. 
Assume the problem is:
{{{45/(-70)}}}n = 9
multiply both sides by -70, results
45n = -70*9
45n = -630
n = {{{(-630)/45}}}
n = -14
:
:
Check solution in the original problem
{{{45/(-70)}}}(-14) = 9
cancel -14 into -70
{{{45/5}}} = 9