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March 31, 2015

March 31, 2015

Posted by **Esther** on Friday, February 4, 2011 at 12:34am.

- Algebra 1 -
**Henry**, Friday, February 4, 2011 at 9:54pmEsther, check your 2-3-11,1:11am post.

- Algebra 1 -
**Henry**, Friday, February 4, 2011 at 10:24pmX Scientific cal.

Y Graphic cal.

Eq1: X + Y = 41.

Eq2: 9X + 55Y = 1519.

Multiply both sides of Eq1 by -9:

-9X - -9Y = -369,

9X + 55Y = 1519

Add the Eqs:

46Y = 1150,

Y = 1150 / 46 = 25 Graphic cal.

X + 25 = 41,

X = 41 -25 = 16 Scientific cal.

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