Posted by pam on Friday, February 4, 2011 at 7:38pm.
solve the system of equations by elimination.
3x4y=22
2x+5y=7

math  helper, Friday, February 4, 2011 at 7:59pm
3x  4y = 22
2x + 5y = 7
To eliminate variable x,
Multiply by 2 (3x  4y = 22)
Multiply by 3 (2x + 5y = 7)
Add equations
6x + 8y = 44
6x + 15y = 21
0 + 23y = 23
23y = 23
y = 1
To find x,
substitute y = 1, in 2x + 5y = 7
2x + 5y = 7
2x  5 = 7
2x = 12
x = 6
x = 6, y = 1

math  donneisha, Friday, February 4, 2011 at 10:47pm
x=6

math  rose, Sunday, April 1, 2012 at 3:46pm
3x+4y=22
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