Posted by Deborah on Sunday, December 2, 2012 at 9:36pm.
6x4y=54
9x+2y=69
Which system would work best to solve?
Please show work and solve. (all steps)
Thank You
I honestly don't know how to do this.

Math  Reiny, Sunday, December 2, 2012 at 10:25pm
I would use elimination, where we attempt to get the coefficients of either x or y to be the same or to be opposite
1st equation > 6x  4y = 54
2nd times 2 > 18x + 4y = 138
add them:
12x = 84
divide by 12
x = 7
sub back into the first
6(7)  4y = 54
4y = 12
y = 3
x = 7, y = 3
sub those values into both equations to verify that my answer is correct (it works !)

Math  Deborah, Monday, December 3, 2012 at 10:52am
Thank you very much....

equation  jack roger, Wednesday, February 13, 2013 at 9:14am
x + 4y = 54
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