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7.2x=2.9
We move all terms to the left:
7.2x-(2.9)=0
We add all the numbers together, and all the variables
7.2x-2.9=0
We move all terms containing x to the left, all other terms to the right
7.2x=2.9
x=2.9/7.2
x=2.9/7.2
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