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February 28, 2015

February 28, 2015

Posted by **Carla** on Monday, October 26, 2009 at 6:47pm.

I have no idea how to do this...

1. Is (2,3) as solution of the system

3x +4y = 18

2x - y =1?

- math -
**rachel**, Monday, October 26, 2009 at 7:12pm3x+4y=18

you just plug in 2 and 3..

3(2)+4(3)=18

6+12=18

18=18

so yes, (2,3) is the solution for the first problem.

2x-y=1

again, plug in 2 and 3..

2(2)-1=1

4-1=1

3=1

so no, it's not the solution for the problem

hope I helped!

- math -
**rachel**, Monday, October 26, 2009 at 7:14pmwait, number two is wtong.. sorry!!

2. 2x-y=1

plug in 2 and 3..

2(2)-3=1

4-3=1

1=1

so yes, (2,3) is the solution to the problem

((:

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