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(0.3x-43)=30
We move all terms to the left:
(0.3x-43)-(30)=0
We get rid of parentheses
0.3x-43-30=0
We add all the numbers together, and all the variables
0.3x-73=0
We move all terms containing x to the left, all other terms to the right
0.3x=73
x=73/0.3
x=243+0.10000000000001/0.3
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