I have 3 answers for u
1st. STOP SLACKING AND DO YOU WORK
2nd. Look at the video
and
3rd. -+ , + + , +-
I am not doing it for you the only way to learn is to work it I gave you a huge hint use it
Answer: The answer is y=9 i did the math twice to make sure.
Step-by-step explanation:
Number of boys:
1000/2+20/2=510
Number of girls:
1000/2-20/2=490
510 boys and 490 girls competed at Special Olympics
Answer: 
Step-by-step explanation:
Move all terms to one side
Simplify 
Split the second term
Factor out common terms in the first two terms, then in the last two terms.
Factor out the common term 
Answer:
x=9
y=16
z=12
Step-by-step explanation:
