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X-1200=7(2X)
We move all terms to the left:
X-1200-(7(2X))=0
determiningTheFunctionDomain X-72X-1200=0
We add all the numbers together, and all the variables
-71X-1200=0
We move all terms containing X to the left, all other terms to the right
-71X=1200
X=1200/-71
X=-16+64/71
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