Thursday

August 21, 2014

August 21, 2014

Posted by **aisha** on Wednesday, March 20, 2013 at 10:15am.

- maths -
**working hard**, Wednesday, March 20, 2013 at 10:30am2x + 3y = 13

4x + 5y = 23

multiply the first equation by 4, the second by 2, add:

8x + 12y = 52

subtract these two equations

8x + 10y = 46

______________

2y = 6 Divide 2

y=3

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