Posted by Amy L on Tuesday, March 15, 2011 at 6:06pm.
Explain why the addition method might be preferred over the substitution method for solving the system
2x3y=5
5x+2y=6

Algebra  bobpursley, Tuesday, March 15, 2011 at 6:11pm
Two simple multiplications, and you can do it in your head.
multiply top equation by 2
4x6y=10
multiply the bottom equation by 3
15x+6y=18
add 19x=38
x=2

Algebra  Amy L, Tuesday, March 15, 2011 at 7:03pm
Thank you this does help. But why is the addition method preferred over the substitution method for solving the system
2x3y=5
5x+2y=6
I got how you got the 19x=38 but whatis the x=2(sorry not good with algebra)
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