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2.80-0.75x=7
We move all terms to the left:
2.80-0.75x-(7)=0
We add all the numbers together, and all the variables
-0.75x-4.2=0
We move all terms containing x to the left, all other terms to the right
-0.75x=4.2
x=4.2/-0.75
x=-5+0.45/0.75
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