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30-0.19x=21.64
We move all terms to the left:
30-0.19x-(21.64)=0
We add all the numbers together, and all the variables
-0.19x+8.36=0
We move all terms containing x to the left, all other terms to the right
-0.19x=-8.36
x=-8.36/-0.19
x=+44
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