Homework Help: algebra

Posted by chrissy on Wednesday, August 1, 2007 at 7:02pm.

thank everyone that site helped but now i just have to practice. for now can someone tell me how does 3x=7-4x x=1
which one do you minus or subtract from the equation?

3x = 7 - 4x

The first thing you need to do is get the unknowns on one side of the equation. You also need to change the sign of the part you move.

3x + 4x = 7
7x = 7
x = 1

I answered my own question is this right? 3x=7-4x 3x+4x=7-4x+4x
7x=7 7divided by 7 is one

Right! :-)

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