I hope this helps you
x.x.x=5.5.5
x=5
It's C or A if it's C that's right if it's A I'm wrong be pretty sure it is C
Answer: D
1/2x-1+4=x
1/2x-x=-3
-1/2x=-3
x=6
#7:
It means to solve for y.
#8:
We can write:
l = w + 2
Because it says the length is 2 more than the width.