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x-0.25x-0.08x=300
We move all terms to the left:
x-0.25x-0.08x-(300)=0
We add all the numbers together, and all the variables
0.67x-300=0
We move all terms containing x to the left, all other terms to the right
0.67x=300
x=300/0.67
x=447+0.50999999999999/0.67
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