9x+4x=18-12

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Solution for 9x+4x=18-12 equation: 



9x+4x=18-12

We move all terms to the left:

9x+4x-(18-12)=0

We add all the numbers together, and all the variables

9x+4x-6=0

We add all the numbers together, and all the variables

13x-6=0

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

13x=6

x=6/13

x=6/13

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