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99-15.99x=150.63
We move all terms to the left:
99-15.99x-(150.63)=0
We add all the numbers together, and all the variables
-15.99x-51.63=0
We move all terms containing x to the left, all other terms to the right
-15.99x=51.63
x=51.63/-15.99
x=-3+1/4.3688524590164
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