12x+45+18x-30=180

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Solution for 12x+45+18x-30=180 equation: 



12x+45+18x-30=180

We move all terms to the left:

12x+45+18x-30-(180)=0

We add all the numbers together, and all the variables

30x-165=0

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

30x=165

x=165/30

x=5+1/2

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