10x-2y=8 i seem to need help lol?

Question

10x-2y=8

solve for y

solve for w

p=2l+2w

how do u do these

and care to explain and show work plz...:)

Answer 1

10x-2y=8

subtract 10x from both sides to get

-2y=8-10x then divide both sides by -2 to get your answer:

y=5x-4

p=2l+2w

subtract 2l from both sides to get

2w=p-2l

then you divide both sides by 2 to get

w=p/2 - l

Answer 2

You would solve like you would in any other equation: isolating the variable by doing the opposite operation to both sides of the equation.

10x - 2y = 8 (subtract 10x from both sides)

-2y = -10x + 8 (divide both sides by -2)

y = 5x - 4 <===ANSWER

p = 2l + 2w (subtract 2l from both sides)

p - 2l = 2w (divide both sides by 2)

(p - 2l)/2 = w

w = (p - 2l)/2 <===ANSWER

Answer 3

10x-2y=8

-2y = -10x + 8 {subtract 10x from both sides}

y = 5x - 4 {divide both sides by -2}

p=2l+2w

p - 2l = 2w {subtract 2l from both sides}

(p - 2l)/2 = w {divide both sides by 2}

Answer 4

-2y=8-10x

-1/2(-2y=8-10x)

y=5x-4

Answer 5

1. subtract 10x from each side  ..    -2y=8-10x

2. divide each side by -2         ...        y= -8/2 -  -10x/2

3. simplify                           ......        y= -4 + 5x

                     or y=5x+4

1. subtract 2l from each side    ...  p-2l=2w

2. divide each side by w      ...   (p-2l)/2 = w

hope this helped

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