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January 30, 2015

January 30, 2015

Posted by **hog tied** on Saturday, November 13, 2010 at 12:36pm.

11x + 8y = 103

22x – 7y = 68

- algebra - college -
**Jen**, Saturday, November 13, 2010 at 1:45pm11x+8y=103 (1)

22x-7y=68 (2)

Multiply (1) by -2 to cancel the x's

-22-16y=-206 (3)

22x-7y=68 (2)

Add them together.

-23y=-138

Divide by -23

y=6

Now substitute y=6 into either equation (1) or (2) to solve for x.

Post your work and answer if you'd like it checked.

- algebra - college -
**hog tied**, Sunday, November 14, 2010 at 12:55pmHi Jen,

Okay here is what I got to solve for x

11x *6 + 8y = 72

66 + 8y

8y = 9

x = 9

Okay did I do this right?

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