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March 28, 2015

March 28, 2015

Posted by **kim** on Friday, October 26, 2007 at 2:58pm.

*Literal Equations*

~solve for x

ax + bx = 8ab

~solve for y

my - ny = m - n

~solve for a

s = n/2 (a + 1)

~solve for n

C = ne / r + nr

~solve for n

a = (n-2)180 / n

- math -
**drwls**, Friday, October 26, 2007 at 3:50pmHere's how to do three of them. Once you see algebraic steps, you should be able to do the rest.

#1 ax + bx = 8ab

x(a+b) = ab

x = ab/(a+b)

#3 s = n/2 (a + 1)

a+1 = 2n/s

a = (2n/s) -1

#5 a = (n-2)180 / n

a n = 180 n - 360

n(180 -a) = 360

n = 360/(180-a)= 2/[1-(a/180)]

(Either answer is correct)

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