Hexadecimal numerals are widely used by computer system designers and programmers, as they provide a human-friendly representation of binary-coded values. Each hexadecimal digit represents four binary digits, also known as a nibble, which is half a byte.
QUESTION:
n + 3 = -7
ANSWER:

STEP-BY-STEP EXPLANATION:
First, Subtract 3 from the both sides of the equation

Last, Subtract 3 from - 7

hope it's helps
<span>Number
line is a way of expressing an integer into a line.
We have the given numbers:
Let x = -5
and Let y = 3
Now let’s create line with 0 in the center. Pls. see the attached image for the
number line presentation.
The answer is -2</span><span>
</span>