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Posted by **shaniqua** on Tuesday, October 12, 2010 at 5:21pm.

- algebra 1 -
**Reiny**, Tuesday, October 12, 2010 at 5:48pmlet the length be l

2l + 2(2x+8) = 12x+20

2l = 8x + 4

l = 4x + 2

- algebra 1 -
**shaniqua**, Tuesday, October 12, 2010 at 6:09pmhow did you get right to.... 2l= 8x + 4 ?

- algebra 1 -
**Reiny**, Tuesday, October 12, 2010 at 6:13pmI skipped what I thought was an easy simplification ...

2l + 2(2x+8) = 12x+20

2l + 4x + 16 = 12x + 20

2l = 12x + 20 - 4x - 16

2l = 8x + 4

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