12x=135+4.50x

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Solution for 12x=135+4.50x equation: 



12x=135+4.50x

We move all terms to the left:

12x-(135+4.50x)=0

We add all the numbers together, and all the variables

12x-(4.50x+135)=0

We get rid of parentheses

12x-4.50x-135=0

We add all the numbers together, and all the variables

7.5x-135=0

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

7.5x=135

x=135/7.5

x=18

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