Posted by teg1901 on Thursday, October 21, 2010 at 9:56am.
How do you do this Simultaneous Equation?
3x+4y=14
x+y=3
Please give me the step by step solution.
Thanks a lot!

Math  Jen, Thursday, October 21, 2010 at 10:13am
3x+4y=14 (1)
x+y=3 (2)
Multiply (2) by 3 to get the x's to cancel.
3x+4y=14 (1)
3x3y=9 (3)
Add (1) and (3) together.
y=5
Replace y=5 in either original equation (1) or (2) to solve for x.

Math  teg1901, Thursday, October 21, 2010 at 12:27pm
Now, I understand. Thanks, Jen!
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