How do I set this problem up in Ax+By=C format? Thanks!?

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How do I set this problem up in Ax+By=C format? Thanks!?

4x=2y+9
4x=2y-4

2006-12-02 09:03:58 · 2 answers · asked by mathdodo 1 in Science & Mathematics ➔ Mathematics

2 answers

Just subtract 2y from both sides of both equations.

2006-12-02 09:06:54 · answer #1 · answered by modulo_function 7 · 0⤊ 0⤋

This is how:

4x-2y= 9
4x-2y= -4

You just must put one unknown on other side of "=" and change its + to - ; or - to +.

I have done this:

4x=2y+9 ==> 4x (stay on its place) - 2y (we have put 2y from right side of "=" to its left side and have changed + to -) = 9 (stay on its place).
We have done the same thing with other one...

2006-12-02 17:14:38 · answer #2 · answered by delorayn1 2 · 0⤊ 0⤋