Answer:
-4y=40
y=-10
x-3(-10)=17
x-30=17
x=17+30
x=47
Step-by-step explanation:
The notation in its current form isn't entirely clear.
Did you mean to write
? The 4 isn't in the square root.
If so, then the expression is in simplest form because we cannot simplify
any further (note how 10 doesn't have any perfect square factors other than 1).
Also, the 3/4 portion is fully reduced already.
------------------------
Or,
Did you mean to write
? This time the 4 is inside the square root.
If so, then we can simplify like this

This means that 
I think the answer is 3cm I’m not 100% sure
Answer:
x + 2 = y
Step-by-step explanation:
y = x - 2
x = y - 2
x + 2 = y
Answer:
-6/9
Step-by-step explanation:
Because 1/9 equals 0.1111111111111........... so if you times 6, it gives us 0.6666666........
Now you just put the negative sign in front! :)