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July 28, 2014

July 28, 2014

Posted by **Shivi** on Wednesday, January 12, 2011 at 7:08pm.

5x + 4y = 13

3x + 8y = 5

- Maths -
**helper**, Wednesday, January 12, 2011 at 7:57pmMultiply * -2 (5x + 4y = 13)

-10x - 8y = -26

3x + 8y = 5

-7x = - 21

x = 3

substitute x = 3 in one of the equations and solve for y

- Maths -
**Shivi**, Wednesday, January 12, 2011 at 8:42pmWhere do you get the -2?

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