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0.80x+0.30x=50
We move all terms to the left:
0.80x+0.30x-(50)=0
We add all the numbers together, and all the variables
1.1x-50=0
We move all terms containing x to the left, all other terms to the right
1.1x=50
x=50/1.1
x=45+0.49999999999999/1.1
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