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.8x+.3x-510=246
We move all terms to the left:
.8x+.3x-510-(246)=0
We add all the numbers together, and all the variables
1.1x-756=0
We move all terms containing x to the left, all other terms to the right
1.1x=756
x=756/1.1
x=687+0.29999999999995/1.1
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