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30=1.8x-5.4
We move all terms to the left:
30-(1.8x-5.4)=0
We get rid of parentheses
-1.8x+5.4+30=0
We add all the numbers together, and all the variables
-1.8x+35.4=0
We move all terms containing x to the left, all other terms to the right
-1.8x=-35.4
x=-35.4/-1.8
x=19+1/1.5
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