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0.5x+0.25(300)=0.25(278)
We move all terms to the left:
0.5x+0.25(300)-(0.25(278))=0
We add all the numbers together, and all the variables
0.5x+0.00022=0
We move all terms containing x to the left, all other terms to the right
0.5x=-0.00022
x=-0.00022/0.5
x=-0.00022/0.5
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