30+0.12x=18

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Solution for 30+0.12x=18 equation: 



30+0.12x=18

We move all terms to the left:

30+0.12x-(18)=0

We add all the numbers together, and all the variables

0.12x+12=0

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

0.12x=-12

x=-12/0.12

x=-100

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