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# How do you solve this equation? 3(x-9)=3

Im confused. I got the answer x=10 but its asking whats an equivalent equation for it and the choices are: 3x–9=3 x–9=1, x–9=9, and 3x–9=9

divide both sides by 3 and you will get:

x-9=1

2/13/2013

3(x-9)=3

multiply x and -9 by 3:

3x-3*9=3

3x-27=3

3x=30

divide both sides by 3

x=10

Hi Juliet,

You could multiply the brackets out as Svetlana did above or you divide both sides of the equation by 3 (or multiply both by 1/3)  and you get the answer: x-9=1 is an equivalent equation. Remember equations are like seesaws: what you do to one side you need to do to the other to keep it equal.

You can then add 9 to both sides to isolate x and you get the same answer as you did in the first place: x=10.

Thank You [: I bet you I'll now remember the seesaw method! 2/23/2013

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