Answer:
21
Step-by-step explanation:
The answer is negitive 21 becuase it you sub and
21+-23=-2
the exactly form i believe would be 1/64
and the decimal form would be 0.015625
LOL okay
y = 16
y = 11 - x
of x is -5, subtitute it into the equation
y = 11 - (-5)
y = 11 + 5