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3.2x+5.1x=41.5
We move all terms to the left:
3.2x+5.1x-(41.5)=0
We add all the numbers together, and all the variables
8.3x-41.5=0
We move all terms containing x to the left, all other terms to the right
8.3x=41.5
x=41.5/8.3
x=5
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