4xx+12=9

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Solution for 4xx+12=9 equation: 



4xx+12=9

We move all terms to the left:

4xx+12-(9)=0

We add all the numbers together, and all the variables

4xx+3=0

We move all terms containing x to the left, all other terms to the right

4xx=-3

x=-3/1

x=-3

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