Evaluate the expression when c = 3/4 and y = 2/5.Write your answer in simplest form. -3y + c

Sure, let's solve the expression step by step:

The expression given is -3y + c.

We are given that c = 3/4 and y = 2/5.

First, substitute the values of c and y into the expression.

So, -3y + c becomes -3*(2/5) + 3/4.

Now, calculate the multiplication: -3*(2/5) = -6/5.

So, the expression becomes -6/5 + 3/4.

To add these two fractions, we need to find a common denominator. The least common multiple of 5 and 4 is 20.

So, convert -6/5 and 3/4 to have the denominator of 20.

-6/5 becomes -24/20 and 3/4 becomes 15/20.

Now, add these two fractions: -24/20 + 15/20 = -9/20.

So, the simplified form of the expression -3y + c when c = 3/4 and y = 2/5 is -9/20.