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December 21, 2014

December 21, 2014

Posted by **please help(:** on Monday, October 19, 2009 at 4:09pm.

3/4x + 1/3y= 19/2

To change into y=, do i multiply the top one by by 1/4 and the bottom one by -1/3?

- MATH! -
**-**, Monday, October 19, 2009 at 4:11pmYou would multiply the top one by -4 and the bottom one by +3, if you want to keep y positive.

- MATH! -
**jim**, Monday, October 19, 2009 at 4:14pmWhat do you have to multiply 1/4 by to get to 1?

4

1/2 x - 1/4 y = 7/2

Multiply across by 4:

2x - y = 14

y = 2x -14

Now multiply the second one across by 3 to finish it yourself.

- MATH! -
**please help(:**, Monday, October 19, 2009 at 4:16pmthank yall(:

- MATH! -
**please help(:**, Monday, October 19, 2009 at 4:29pmWell i can't seem to figure out the intersection on my calc. please help.

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