Answer: 
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Work Shown:

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Explanation:
The idea is to first get all the y terms to one side. I did this by subtracting 2y from both sides in the third step.
Then factor out y and divide both sides by (8x-2)
Afterward there's the optional steps of simplifying (as shown in the final two steps).
Answer:
Answer is 40.
Step-by-step explanation:
Answer:
400 m/s
Step-by-step explanation:
u=0 m/s
t=20 s
a=20 m/s²
v=u+at
=0+20×20
=400 m/s
4.555
4.556
4.557
4.558
4.559
4.561
4.562
4.563
4.564
Answer:
0.5
Step-by-step explanation:
hypotenuse/adjacent=r
7/14=0.5