How do I solve

8-(-4)?

8-(-.4)?

a negative and a negative is always a positive. so its 8 + 4

12

To subtract a negative number, you simply add the number.

Therefore, 8-(-4)= 12

and, 8-(-.4) = 8.4

ALWAYS add when subtracting a negative number, ok? :) Hope that helps!

To solve the expression 8 - (-4), you can follow these steps:

Step 1: Change the double negative (-4) to a positive number. To do this, remember that a negative sign in front of a negative number makes it positive. So, -(-4) becomes +4.

Step 2: Now, you have the expression 8 - 4. Subtract 4 from 8.

Step 3: The result of 8 - 4 is 4.

Now, let's move on to the expression 8 - (-0.4):

Step 1: Again, change the double negative (-0.4) to a positive number. So, -(-0.4) becomes +0.4.

Step 2: Now you have the expression 8 - 0.4. Subtract 0.4 from 8.

Step 3: The result of 8 - 0.4 is 7.6.

So, the solutions to the given expressions are:

8 - (-4) = 4
8 - (-0.4) = 7.6