What you will do is to use the rule of P.M.D.A.S
(Parenthesis, Multiplication, Division, Addition, and Subtraction). This is a
basic problem solving technique in computing long equations in math.
Since you
equation is 3.26 + (-4) you will first look at the signs with the parenthesis.
When you multiply a positive sign with a negative sign the result will always
be negative. Translating that into an equation it looks like this:
+(-4) = -
4
Your new
equation with the answer would
then be:
3.26 - 4
= -0.74