Question

Solve equation 7-5c=17+5z

Answer 1

c= -z-2

Explanation:

`7-5c=17+5z\\\\\mathrm{Subtract\:}7\mathrm{\:from\:both\:sides}\\\\7-5c-7=17+5z-7\\\\Simplify\\\\-5c=5z+10\\\\\mathrm{Divide\:both\:sides\:by\:}-5\\\\(-5c)/(-5)=(5z)/(-5)+(10)/(-5)\\\\Simplify\\\\c=-z-2`

Answer 2

This question is impossible! For two different variables, we need two different equations. Without that, there is no hope! :)