Mathematics
OpenStudy (anonymous):

-7/9c=3/5

OpenStudy (saifoo.khan):

$c = \frac{27}{35}$

OpenStudy (saifoo.khan):

$-\frac79c = \frac35$

OpenStudy (anonymous):

I'm sorry, yes the answer is c= 27/35

OpenStudy (anonymous):

step by step plz

OpenStudy (saifoo.khan):

Cross multiply, $-7c \times 5 = 3 \times 9$ $-35c = 27$ $c = -\frac{27}{35}$

OpenStudy (anonymous):

basically, in order to solve for the variable, you multiply each side by the reciprocal (the inverse) of the number besides that variable. In this case, multiply -9/7 on each side to get rid of the -7/9. you'll end up with -35c=27. Divide both sides by -35 and you get -27/35