Question

What is the value of the expression –c+d when c = –3.5 and d = –12.8?
a. –9.3
b. –16.3
c. 15.3
d. 16.3

Answer 1

So now we have….

-(-3.5) + (-12.8) = ?
{the double negative symbols change into a positive}
3.5 + (-12.8) = ?
3.5 - 12.8 = ?
Answer = -9.3

Your answer is a. -9.3

Hope this helps :)