SOLUTION: how to solve this equation: 3a+7=a+9 ? Please help!

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Question 581741: how to solve this equation: 3a+7=a+9 ? Please help!
Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!

As long as you do the same thing to both sides,
the equation is still true
Subtract from both sides


Now subtract from both sides


Now divide both sides by

answer
------------
check:




OK

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