3x+6x=144

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Solution for 3x+6x=144 equation: 



3x+6x=144

We move all terms to the left:

3x+6x-(144)=0

We add all the numbers together, and all the variables

9x-144=0

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

9x=144

x=144/9

x=16

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