Answer:
x=4
Step-by-step explanation:
To solve for x, we need to isolate it.
Start by adding 16 to each side to cancel out the -16:
-x=-4
-x is essentially -1 * x which can be written as -1x
-1x=-4
Divide both sides by -1 to isolate x
x=4
We can also plug this back into the equation to check:
-16-x=-20
-16-4=-20
-20=-20 --> correct!
