Asked by teg1901

How do you do this Simultaneous Equation?
3x+4y=14
x+y=3

Please give me the step by step solution.

Thanks a lot!
Answered by Jen
3x+4y=14 (1)
x+y=3 (2)
Multiply (2) by -3 to get the x's to cancel.
3x+4y=14 (1)
-3x-3y=-9 (3)
Add (1) and (3) together.
y=5
Replace y=5 in either original equation (1) or (2) to solve for x.
Answered by teg1901
Now, I understand. Thanks, Jen!
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