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19.5+2x+2.5=36.5
We move all terms to the left:
19.5+2x+2.5-(36.5)=0
We add all the numbers together, and all the variables
2x-14.5=0
We move all terms containing x to the left, all other terms to the right
2x=14.5
x=14.5/2
x=7+0.5/2
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