Solve for l.
p = 2l + 2w
l = 2/(p - w)
l = 2(w - 2p)
l = (p - 2w)/22

The answer to your question is: L = (P - 2W) / 2

Step-by-step explanation:

                      Equation              P = 2L + 2W            solve for L

                                                  2L + 2W = P          

                                                  2L = P - 2W              pass 2W to the right side

                                                                                    subtracting

                                                  L = (P - 2W) / 2        pass 2 to the right side

                                                                                   dividing

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3

5+2x=a

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