If you're looking for x then it's 7. The value of -4 is -4.
Just substitute wherever x is for example 2 times 3.5
D
E
F
Work
So the answer to the original problem:
6-4.5 +(-8) equals -1.5
D,E,and F all yeild this answer.
Another way to do it is to simply rearrange the equation
D:
6-4.5 +(-8)
6-4.5-8
your just removing the parenthesis and swapping the sign
E:
6+(-4.5) -8
is the exact same as
6-4.5 +(-8)
you're just moving the parenthesis
F:
This one you're just adding a parenthesis and flipping the of
6-4.5 +(-8)
which turns it into
6+(-4.5)+(-8)
Hope this helps!
If you mean negative thirteen, the number on the right of it would be negative twelve (-12)
