pg. 449
12. x/x+1+1/2x+2=7/8
-7/8,x/x+1/2x+2
factor, simplify, combine like terms, find the lcd.
build the denominator to have the same number for the bottom.
8 is the lcd
8(x+1)(X 1
______+ __ = 8(x+1) 7/8
(X+1) 2(x+1)
8x+8x 8x+8
________+
x+1 _________ x
2
cancel out the x+1
4x(2-2)(2+2x)+ 8x+4=7x+7
7 multiply by x= 7x using the distributive method
8-1=7
answer 8x+4=7x+7
combine like terms;
x=3
Marie Zajac
Bachelor's Degree in psychology with a concentration in rehabilitation counseling.
Monday, January 18, 2010
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