algebra
posted by chrissy .
thank everyone that site helped but now i just have to practice. for now can someone tell me how does 3x=74x 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=74x 3x+4x=74x+4x
7x=7 7divided by 7 is one
Right! :)
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