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0.50x+0.85(30)=0.25(132)
We move all terms to the left:
0.50x+0.85(30)-(0.25(132))=0
We add all the numbers together, and all the variables
0.50x+0.60168=0
We move all terms containing x to the left, all other terms to the right
0.50x=-0.60168
x=-0.60168/0.50
x=-1+0.10168/0.50
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