Question

Evaluate expression when c=28 and d=21 d-c/7

Answer 1

The given expression ;

`d-(c)/(7)`

for c = 28 and d = 21

Substitute the value of c = 28 and d = 21 in the given expression;

`\begin{gathered} d-(c)/(7)=21-(28)/(7) \\ d-(c)/(7)=21-4 \\ d-(c)/(7)=17 \end{gathered}`

Thus, the value of expression at c= 28 and d =21 is 17

Answer: 17