Evaluate - x+4y when x=-45 and y=13. Write your answer as a fraction or mixed number in simplest form.

97

Start by substituting the values into the expression.

- (-45) + 4 (13)

A negative negative number can be turned into a positive number.

45 + 4 (13)

Now, multiply 4 times 13 to get 52.

45 + 52

Finally, just add 45 and 52.

97