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April 16, 2014

April 16, 2014

Posted by **gaetano** on Wednesday, January 2, 2013 at 6:44am.

x ?

y ?

thanks

- matematica -
**Reiny**, Wednesday, January 2, 2013 at 10:17amdouble the first

6x + 10y = 30.6

6x + 2y = 16.2 , the second

now subtract them

8y = 14.4

y = 1.8

back in first

3x + 5(1.8) = 15.3

3x = 6.3

x = 2.1

x=2.1 , y=1.8

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